Tricarpellary, syncarpous, trilocular, stigma trifid, axile placentation, superior ovary. E.g., Opuntia, Euphorbia, Casuarina. Keel is characteristic of the flowers of : Gulmohar It is a nerve stimulant and are also used as an insecticide. : Bracts are the leaves which contain flower in their axil. Morphology play a key role in the classification of angiosperm. P.G.T. E.g., Ipecac. A tonic is prepared from the bark of Bauhinia variegata. Morphology of Flowering Plants Anatomy of Flowering Plants Structural Organisation in Animals UNIT III: Cell: Structure and Functions. This same arrangement occurs on these lateral branches. Here we have covered Important Questions on Morphology of Flowering Plants for Class 11 Biology subject. It may be of following types –. Keel is characteristic of the flowers of : Gulmohar When the fruit is developed only from the ovary, the fruit is called as true fruit. : In this type, tips of roots swell up. E.g., leaf tendrils, leaf spine etc. : In this, the growth of peduncle is retarded and it becomes broad, flattened concave or convex. Morphology of Flowering Plants Class 11 Notes Download in PDF Morphology:. These fruits develop from superior or inferior syncarpous gynoecium. C. luteum = Corm is laxative. Tap and adventitious roots are modified in different forms to perform special functions and are called as modified roots. : The apical region of floral axis, becomes suppressed and swells up and bears sessile flowers, e.g., Acacia. The […] E.g., Physalis (Rasbhari). Generally, dicotyledonous plants have tap roots as shown in Fig. : This type of pattern has only one principal vein, that gives off many lateral veins, which proceed towards the margin of the leaf blade in a parallel manner but they do not have veinlets. There is a large diversity in external structure or morphology of plants; they are all characterized by presence of roots, stems, leaves, flowers and fruits. E.g., Tridax, Portulaca. This arrangement now also occurs on these lateral branches and is known multiparous cyme. Chapter 5 Morphology of Flowering Plants 1.What is meant by modification of root? A flower having both androecium and gynoecium, is bisexual. ... 1 Test Animal Kingdom. It will be helpful for all the aspirants preparing for cbse class 11. : These develop only from cortex and epidermis and found at nodes or internodes. The flowers enter into the soil after fertilization in groundnut. Mango, coconut). In a flower, 4 types floral leaves are found. : When roots arise from leaf they are called as foliar roots. It is a pain reliever and sedative. Photosynthesis and transpiration occur in this. is the branch of biology which deals with the study of form, structure and relative position of different organs. Adventitious roots can be modified on the basis of functions like fleshy for storage (e.g., moniliform, annulated, tuberous, fasciculated, palmate, nodulose),  mechanical support and for vital functions. The base of roots swell. Morphos = Form; logos = Study) is the branch of science which deals with the study of form and structure. roots arising from the base of the stem, e.g.,Triticum. Reply Delete. #themaharajinstitutechapter 5 biology class 11 II morphology in flowering plants II neet II aiims Biology by : BHAWNA PURI Arrangement of flower on floral axis (peduncle) is called inflorescence. Ended on Dec 10, 2020. Fasciculated root is found in Asparagus (satawar). Maturation zone is present above the zone of cell elongation. After fertilization the ovules, develop into seeds. Check the below NCERT MCQ Questions for Class 11 Biology Chapter 5 Morphology of Flowering Plants with Answers Pdf free download. Morphology is the branch of biology which deals with form, size, structure and relative position of various organs of a living organism. Cell Cycle and Cell Division ( All ) Select Topic. E.g., Silk cotton. clasping round the stem. : In this type of leaf, mid rib is known as rachis. When the flower cannot be divided into two equal halves from any plane, then it is called. Ovaries arranged obliquely on thalamus carpels move at ∠45° in clockwise direction. The innermost two petals are fused together to form a boat like structure called keel or carina which encloses the essential organs. Candidates who are ambitious to qualify the Class 11 with good score can check this article for Notes. Adventitious roots can be grouped into 3 types on the basis of their appearance -. CBSE Gujarat Board Haryana Board. The study of various external features of the organism is knownas morphology. E.g., Malvaceae family, Hibiscus rosa sinensis, cotton. Flowering plants are the most diverse group of land plants with 300,000 known species. Now from these branches lateral branches also develops. 9 stamens are present in them in monoadelphous condition (9). Dispersal of fruit occurs after pericarp is destroyed. Flower is the sexual reproductive structure of the angiosperms, typically consisting of gynoecium, androecium and perianth and the main stem bearing these parts. E.g., Argemone,Opuntia,Aloe, Cat's nail (Bignonia unguis-cati). 16.13. : In this type, axillary bud forms tendril in place of branches and helps in climbing of those plants which have a weak stem. Each flower generally has four floral whorls, namely. E.g., Cotton, Ladyfinger, China rose. NEET Biology Question Bank for Morphology of Plants: Students preparing for the National Eligibility cum Entrance Test (NEET) can check the question bank of Biology’s chapter Morphology of Plants from Unit 2 here.NEET Biology Question Bank for Morphology of Plants covers all types of questions candidates are likely to confront in the exam paper. A large number of roots originate at the base of the stem, e.g. The cotyledons are often fleshy and full of reserve food materials. Urginea (wild onion) and Scilla- A rat killer medicine is prepared from their bulb. But one should have some idea of the exceptional forms one usually … 2. It is absent in hydrophytes, epiphytes, parasites and mycorrhiza. E.g., Onion and aroids. Hindi Biology. Posterior carpal turns on right side and anterior carpal turns on left side. Fire of forest = Butea monosperma - orange, yellow dye is obtained from the flower. : Stem which attach themselves to nearby object by means of some special devices like hooks. Gynoecium is monocarpellary, unilocular, half inferior/ superior with marginal placentation. Bauhinia purpurea and Ceratonia siliqua are used as fodder. E.g., Passiflora. E.g., Evolvulus and Oxalis (Wood sorrel). : In this, peduncle ends in a flower and from the base of it many lateral branches arise, which also terminate in flower. : These fruit develop from mono or multicarpellary, syncarpous, superior ovary. Pongamia pinnata - Oil of seed is used for rheumatism. It bears nodes where the leaves arise and the portion between the two nodes is called an internode. The pappus helps in dispersal of fruit. The root, leaves and branches constitute the. E.g., Money plant (pothos), Monstera (Betel), Black pepper. Bengal kino - It is obtained from the butea (dhak). From the axil of each leaf inflorescence develop. Covers is covered at the apex by A thimble-like structure it is known as the root cap as shown in Fig. Jan 8, 2020 • 1h 7m . The stem bears buds. E.g., Calotropis, Aristolochia. Eucalyptus 3. Roots are branched and tap root system is present. E.g., Calotropis, Casia fistula, Nerium. 2M watch mins. Neel (Blue dye) = Indigofera tinctoria (dye is obtained from leaves). Calyx and alia are essential organs. flower. The embryonal axis consists of two ends - radicle and plumule. Sometimes, lomentum is also found as in Arachis (mungphali), Arhar (Pigeon pea)= Cajanus cajan (lndicus), Urad (Black gram) = Phaseolus mungo or Vigna mungo, Mung (green gram) = Phaseolus radiatus (esculentus) or Vigna radiatus, Masoor =  Lens esculenta or L. culinaris or Ervum lens, French bean or Kidney bean (Rajma) = Vigna/Phaseolus vulgaris, Gwar (cluster bean) = Cymopsis tetragonoloba. Sterile and undeveloped stamens are called, When four stamens are present, out of them two are long and two are short, then it is called, When there are six stamens and they are arranged in two whorls. The rind of Almond and walnut are endocarp and their edible part is seed. :  In corymb, peduncle is short and all the flowers are present at the same level because the lower flower has much longer pedicel than the upper one. E.g., Bougainvillea. E.g., Disc florets of sunflower which are situated in the centre. : They are usually green coloured and their main function is photosynthesis. Morphology of Flowering Plants Class 11 Biology Notes Chapter 5 Pdf free download was designed by expert teachers from the latest edition of NCERT books to get good marks in CBSE board exams. Fabaceae is the alternative name of the Leguminosae. Here you can get Class 11 Important Questions Biology based on NCERT Text book for Class XI. When the stamens are attached to other parts of flower, then it is called adhesion of stamens. In carpels ovary and style are fused but stigma are not fused. The flower which arises from the axils of bract is called, The whorl of bract surrounding peduncle is called, In flowers, when a large bract completely encloses whole inflorescence, then it is called. These are also found on pedicel. monoecious plants have flowers of both sexes, i.e., staminate and pistillate flowers, e.g., ricinus,zea mays (maize) and cucurbits. In Eichhornia, petiole swells and in Citrus, it is winged. The posterior stamen is absent in Arachis, Dalbergia and Abrus. The plants, which grow in this region have some branches of taproot that grow vertically upward and comes on surface of soil. It is of two types – bulbs and corm. It may be white or brightly coloured. 2. Dec 27, 2020 - NCERT Textbook - Morphology of Flowering Plants NEET Notes | EduRev is made by best teachers of NEET. Lahasun (Allium sativum) - It is very useful in heart disease, rheumatism & diabetes. Anatomical 3. The fusing margin of carpels grows inward and meet in the centre of the ovary. Free PDF download of Important Questions with Answers for CBSE Class 11 Biology Chapter 5 - Morphology of Flowering Plants prepared by expert Biology teachers from latest edition of CBSE(NCERT) books. When the incisions of the lamina reach up to the midrib breaking it into a number of leaflets, the leaf is known as compound. E.g., Tobacco, Raspberry, flowers of Campanula. : In this, petiole becomes flat and functions as a normal leaf. They do not have any re­gular shape. Solanum nigrum (Makoi) - The fruits are laxative. Categories: ebook, PPT Tags: 32 years chapterwise NEET solved papers, Best biology PPT for NEET, Biology NEET PPT free download, Biology PPT Download, Morphology of Flowering PLants PPT for Class 11, Morphology of Flowering PLants PPT for Class 11 free download, Morphology of Flowering PLants … : The ovary is unilocular and a single ovule is borne at the base of ovary. The part of the flower which lies near to mother axis is posterior part while the part which is far from mother axis is the anterior part of flower. 1. The pods of shikakai are also used as insecticides. Tobacco, Sunflower, Potato. The pattern of arrangement of leaves on the stem or branch. : Stem trails for some distance and then tends to rise at its apex. In this type of cohesion, a tube is formed around the gynoecium which is called staminal tube. Table of Contents This is usually of three types namely alternate, opposite and whorled as shown in Fig. Morphology/ Anatomy of Flowering Plants NEET MCQs- Important Morphology/ Anatomy of Flowering Plants MCQs & Study Notes for NEET Preparation.Learn and practice from Modern Biology quiz, study notes and study tips to help you in NEET Biology preparation. Palaeontological 7. Eg. This is the stalk of the flower. The leaflets are attached at a common point in palmately compound leaves. : These roots arise from nodes of stem and helps the plant in climbing. : All leaves of such plants shed at the same time. : When peduncle (or main axis) is elongated and flowers are pedicellate. The dehiscence of anther is longitudinal but in Solanum, dehiscence occurs through the apical pores. The seed is attached to the fruit wall or pericarp by means of stalk called, . In coconut, this layer is made up of fibres which is also called coir. : In some monocotyledons there is no aerial stem instead there are aerial shoot (branch) which bears flowers. : Generally these are aquatic plants which have a short and fragile stem. The second whorl of flower is called corolla and each member of it is called petals. Alhagi pseudoalhagi = Camel's fodder. The session will be conducted in English & notes will be provided in English. Live Quiz on morphology of flowering plants. The reproductive unit in the angiosperms is the flower. Multilocular ovary is formed in tomatoes and Datura due to formation of false septum. Sarasaprilla (Smilax zeylamicum) - Its seeds are used in urinary troubles. E.g., Ginger, Turmeric, Canna, Water lily. Sendiviera trifasiata – "Mother in Law's tongue", Frittilaria tenella ; F. Melagris – Snake's head. It is found in dicots, exception - Calophyllum (It has parallel venation). 1. Stramonium is obtained from the seeds of Datura (Thorn apple) in which Scopolamine alkaloid is present. In this unit you will learn about the important morphological features of the flowering plants. The embryonal axis is attached to the cotyledons for absorbing nutrition from them. The embryo is small and situated in a groove at one end of the endosperm. It has two sutures and opens along both (dorsal and ventral) sutures. Vexillum covers two lateral petals which are called as wings and the innermost basal parts are united to form a keel or carina. : Such roots do not have a regular shape and get swollen & fleshy at any portion of the root. In see Fig. In the green calyx of Mussaenda, one of the sepals enlarge and form a leaf like structure. These petals are arranged crosswise. This type of inflorescence is called compound corymb. Hindi Biology. When the peduncle is branched and each branch bare pedicellated flowers like racemose and are arranged in acropetal manner then it is known as compound raceme or panicle. Q12. Out of the five petals, two are completely internal, two completely external and in the remaining petal, one margin is internal and the other margin is external. . Phytomorphology is the study of the physical form and external structure of plants. The Detailed Discussion of Plant Families . Root system is either tap root or fibrous. E.g., Rhizophora, Mangrove, Heritiera. Gum arabic is obtained from Acacia senegal. 7 Stamens are present in Tamarindus, monadelphous, out of them 4 are staminodes. It may be thin membrane (eg. Leaves originate from shoot apical meristems. Radicle in most dicots form _ _ _ _ _ while plumule forms _ _ _ _ _. In mango the pericarp is well differentiated into an outer thin epicarp, a middle fleshy edible mesocarp and an inner stony hard endocarp in mango. Leaf is a special organ of vegetation in the form of a lateral outgrowth from the stem, whether appearing as a part of the foliage, or as a cotyledon, a scale, a bract, a spine, or a tendril. Morphology is nothing but the study of the form, structure and types of these parts of a plant. : The part of leaf connecting the lamina with the branch or stem. … Describe the various types of placentation found in flowering plants. It is highly swollen vertical stem. Some stems store food, support, protection and of vegetative propagation. Morphology of Flowering Plants | Plus 1 Botany | Exam Capsule Notes Under preparation. The Living World 1 Test The Living World. Replies. Morphology of Flowering Plants PPT for Class 11 quantity. Albizzia lebbek- Siris-Pods are edible and used as fodder. : In spike, peduncle is elongated but flowers are sessile. The ovary is superior and long in which two sutures are present - ventral suture and dorsal suture. To overcome this problem, the fruits and seeds have developed several special devices for wide dispersal. Watch Now. Plagiarism Prevention 4. E.g., Colocasia, Alocasia, Zaminkand, Saffron. : When food is stored in these roots, they become swollen and form a bunch. In this session, Dr. Bhawna Aggarwal will discuss Morphology in Flowering Plants. When peduncle is branched and each branch bears spike like inflorescence then the small branches having flower is called spikelet and this arrangement is called as spike of spikelet. : It consists of 5 or more petals. The seeds of orchids and some grasses are very small and light in weight and may be easily carried away by the wind to far off places. E.g., Australian acacia. : This type inflorescence is found in Labiatae/Lamiaceae family. Its only function is to anchor the plant firmly in the soil. Major part of the grain is occupied by a large endosperm which is rich in starch. Calyx, corolla, androecium and gynoecium. Both lateral parts covers the keel. It's posterior part is largest and is known as standard or vexillum. On the basis of these dissimilarities (inflorescence and floral characters), Leguminosae family is divided into 3 subfamilies –. Mayur Dubey. Class 11 Morphology of Flowering Plants- Get here the Notes for Class 11 Morphology of Flowering Plants. A bud is present. Jul 3, 2020 • 1h 1m . Similar Classes. Melilotus. Gynoecium is the female reproductive part of the flower. very very very very very very helpful i mean fantastic . The manner in which placenta are arranged on ovary wall is known as. The stipules of leaves in both Pea and Lathyrus odoratus become foliaceous (which help in photosynthesis). ), Van Methi (Sweet clover) = Melilotus indicus, Sunnhemp = Crotalaria juncia - bast fibres, Dhanicha = Sesbania cannabinus - Hard fibres, Shisham = Dalbergia sissoo [Indian Red wood], African black wood = Dalbergia melanoxylon, Red colour is obtained from red sandal = Pterocarpus santalinus. The endocarp is hard and seed is protected in it. Hindi Biology. Morphology of Flowering Plants PPT for Class 11 ₹ 125.00 ₹ 100.00 It is extremely useful for quick revision before examination and this PPT gives clarity to students and boost there confidence. Tap root are modified for food storage and respiration. They are arranged in an acropetal order and are the very important vegetative organs for photosynthesis. Dalbergia latifolia - (Indian Rose wood) - Its bark is used in tanning. Let’s explore the important sub-topics for this important chapter. : Internode between corolla and androecium is called androphore. E.g., Banana, Ginger, Canna. Krameria triandra - The medicine is used for diarrhoea. E.g., Tomato, Capsicum, Brinjal, Cotton, Datura. E.g., Bryophyllum, Begonia. Hindi Biology. That is the tip of petiole as in silk cotton. Figure 16.8 shows the compound leaves which may be of two types. Live your dream of studying at AIIMS with comprehensive coaching and guidance from seasoned mentors. English Biology. Inulin found in Dahlia tuberous roots is a: (a) Carbohydrate (b) Protein (c) Lipid (d) Enzyme (a) Carbohydrate. Exception - Smilax (It has reticulate venation). The bark and leaves of Cassia glauca are used in diabetes and gonorrhoea. Smilax is a monocot, having reticulate venation. It is most advanced type of inflorescence, because all flowers are pollinated at same time. E.g., Silene. E.g., Maize, Sugarcane, Pandanus (screwpine). Ended on Sep 2, 2020. Biology Class 11 Important Questions are very helpful to score high marks in board exams. The flowering plants are also known as angiosperms. While speaking about the general morphology of Angiosperms one means the mor­phology of typical forms, that is, the ordinary plants we see around us like the mango tree, the rose shrub or the grasses. Check the below NCERT MCQ Questions for Class 11 Biology Chapter 5 Morphology of Flowering Plants with Answers Pdf free download. Copyright 10. Acacia arabica = Desi Babool. E.g., Neem. It also performs the function of synthesis of food. of placenta is equal to the no. MCQ Questions for Class 11 Biology with Answers were prepared based on the latest exam pattern. In this type of placentation, the no. : This stem has a disc like structure and surrounded with numerous fleshy scaly leaves. If perianth is coloured other than green then it is known as petaloid as in Lily. : In this, the main stem grows in the soil but branches develop from nodes above the soil. These roots are called pneumatophores. Morphology of Flowering Plants PDF Notes, Important Questions and Synopsis. 9, Laxmi Nagar Delhi-110092. Usually bipinnate. : It develops from radicle which is made up of one main branch and other sub-branches. Biology Important Questions Class 11 are given below. The arrangement of flowers on the floral axis is known as inflorescence. Root is the water- and mineral-absorbing part of a plant which is usually underground, does not bear leaves, tends to grow downwards and is typically derived from the radical of the embryo. Leaves of some plants have lateral appendages on either side of leaf base, known as, . Mangifera indica 4. Discussion on Photosynthesis with NCERT based Quiz - 23. : This leaf comes out during germination and helps in nutrition until the first leaf is not formed. Monocotyledonous plants have fibrous roots. : Such leaves are usually dry membrane like and they cannot perform photosynthesis. Claws are absent in it and limbs are spread regularly outwards. In Larkspur and Balsam, the posterior part of sepal is modified into a narrow tube. This is usually considered distinct from plant anatomy, which is the study of the internal structure of plants, especially at the microscopic level. The cells of this region are in active state of division and so this is the main growing region of the root. 10 stamens are monoadelphous in Pongamia, Crotalaria, Lupinus cymopsis (10). Placentation is axile in beginning. : The bracts or the involucre become fused to form a cup shaped structure. In this, the ovule is formed by the fusion of two or more carpels by their adjacent margins and two or more placenta forms. The region of cell elongation is present above the meristematic zone resulting in an increase in length of the root. E.g., Colchicum. E.g., Pistia, Eichhornia. Most of the plants do not move from one place to another. Calyx and corolla are helping or accessory whorls and androecium and gynoecium are  reproductive whorls. Normally, monocotyledonous seeds are endospermic but some as in orchids are non-endospermic. In the members of Asteraceae, the calyx is modified into hair like structures called pappus. Figure 16.1 shows the parts of a flowering plant. Flowers are bracteate or ebracteate, bisexual, complete, hypogynous, pentamerous and actinomorphic but in few of them is zygomorphic such as in Henbane, Hyoscyamus and Salpiglossis, Schizanthus. of carpels. Perianth is present in this family. Morphology is the study of the external form and the internal structure of plants and the ontogenic development of the plant body as a whole and of its member. Hindi Biology. Edible part of knol khol is: (a) Inflorescence (b) Leaves (c) Roots (d) Stem (d) Stem. Access full series of free online mock tests with answers from Morphology of Plants Biology. Hydrochory is the mode of dispersal of fruits and seeds by water. In this, the ovary is unilocular and the ovules are borne on the axis in the centre of the ovary. : In this type of corolla, 5 gamopetalous petals are present. This session would be helpful for aspirants preparing for the NEET UG exam. : The posterior petal is innermost i.e., both its margins are overlapped. The flowering plant consists of An Axis, Root System and Shoot System. For example, Mango, Polygonum and Cashewnut possess three types of flow­ers— perfect … ), Exception : Petals are absent in Ashok (Saraca), only 3 - petals are present in Imli (Tamaritidus). The symbols used for Angiosperms for floral formula : Many ovules are present in the ovary so many seeds are formed as in tomato, brinjal etc. Dr S K Singh. E.g., Potato, China rose, Onion, Lemon, Orange, Tomato, etc. In plants such as bean, gram and pea, the endosperm is not present in mature seeds. . E.g., Calotropis (madar), Nerium, Asclepias. : They usually store reserve food material in cotyledons. Fibrous root: found in monocotyledons. But, bipinnate in Delonix. The leaves and seeds of Cassia occidentalis and Cassia obtusifolia are used in skin diseases. UNIT II: Structural Organisation in Plants and Animals. E.g., Begonia, Vine. Soyabean contains more protein than meat. The flowers are described as hypogynous perigynous and epigenous the position of calyx, corolla and androecium in respect of the ovary on thalamus. Hindi Biology. : This is a type of raceme inflorescence, but in which flowers are sessile. Content Guidelines 2. The bulbs are of two types – scaly or imbricate. “Raceme of racemes.”. Tap root: Primary root is formed by elongation of the radicle and it bears secondary and tertiary roots, present in dicot plants, e.g. The bladder like structure is meant for catching the aquatic insects etc. Pradeep Singh. Add to cart Quick Checkout. Eyes are found on them which are axillary buds and covered with scaly leaves. It helps in climbing. When leaf lamina is entire or when incised a leaf is said to be simple. Reply. : Internode between calyx and corolla is called anthophore. : When filaments of stamens are attached to gynoecium or by anthers only. : It is the outermost layer. Currently only available for. Vipin Kumar Sharma. On the margin of it, secretory glands are found. Morphology (Gr. Colchicum autumnale - Colchicine is obtained this plant which is used to induce polyploidy in plants. Leaf develops at the node and bears a bud in its axil. These are calyx, corolla, androecium and gynoecium. Small nodes and internodes are found which are covered by scaly leaves. Tectona grandis. This inflorescence is found in euphorbiaceae family like Euphorbia, Poinsettia, Pedilanthus. Flowers, leaves, stem, fruits. Morphology is the branch of biological science that deals with the study of form, size, colour, structure and relative position of various parts of organisms. Sepals -5, gamosepalous, valvate aestivation and persistent. Access full series of free online mock tests with answers from Morphology of Plants Biology. Tulip – The flowers are attractive due to infection of virus. It is of  two types : pinnately and palmate compound leaf. Seed is characteristic of gymnosperms and angiosperms. TOS 7. The tips of branches become swollen in the soil. Special features : Swollen placenta is present. Morphology: Deals with the study of external structure. Some have berry as in Lily and normally it is capsule as in onion. The leaves develop from the nodes. Underground stems are non-green stem and this type of modification occurs generally for food storage and vegetative propagation. From the main axil, lateral axil arises, on which flowers are found. In these plants from 10 stamens, 9 stamens are arranged in a bundle while 1 remains free. refers to the study of external form and structure of plants. This structure is called. E.g., Mint, Pineapple, Chrysanthemum. Roots are of two types : tap root and adventitious root. If a fruit is formed without fertilization of the ovary, it is known as a parthenocarpic fruit. The part from where flower arises is called bract. The micropyle permits the entry of water needed at the time of germination. 5 - 8 normal stamens are present in Saraca (Ashok), 5-normal stamens are found in Bauhinia variegata (Kachnar). Hypogynous and trimerous, epiphyllous and in some plants may be epipetalous. Download books and chapters from book store. Maize grain shows structure of a typical monocotyledonous seed. , each node gives rise to two leaves arranged opposite to each other. When the shape and size of petals are similar then it is called symmetrical while when they are not similar, then they are asymmetrical. At the base of the flower stalk, there is whorl of bracts forming the involucre. Learners at any stage of their preparations will be benefited from the class. E.g., Candy tuft (Iberis amara). Mimosa pudica = Sensitive plant – Touch me not. It means there is no difference in between calyx and corolla. It is the largest and outermost petal which is called standard or vexillum. [If it grows horizontally then it is said to be rhizome (Aloe).] Bracteate, bisexual, actinomorphic symmetry, perigynous/hypogynous, tetramerous or pentamerous.