A structurally complete leaf of an angiosperm consists of a petiole (leaf stalk), a lamina (leaf blade), stipules (small structures located to either side of the base of the petiole) and a sheath.Not every species produces leaves with all of these structural components. The petals, which are irregular in shape, are usually either blue or white and they have yellow markings. There are three main tissues found in leaves: the epidermis, the mesophyll, as well as vascular tissue. If the stipules are absent, the lea F is called ex-stipulate. In some plants like Lathyrus aphaca, the entire leaf gets modified into a tendril and the stipules expand to carry out the function of a leaf. Caducous: Each tissue type â¦ Caducous stipules fall off before the leaf unfolds, while deciduous stipules fall off immediately after the leaf unfolds. Furthermore, stipules are parts of true leaves while bracts are a type of modified leaves being part of the inflorescence. When managed properly, annual lespedeza can re-seed itself. It has unusual leaves with blades that taper near the stalks and with stipules that divide into lobes that are very narrow. Leaves can have different shapes and sizes. The three types of stipules according to duration are caducous, deciduous and persistent. Hooks. There are 4 types of tendrils as, Leaves may get modified into tendrils as in Pisum sativum where the apical leaves are modified into tendrils. KINDS OF STIPULES-There are several kinds of stipules, viz :-(i) free-lateral, (ii) adnate, (iii) intrapetiolar, (iv) interpetiolar, (v) ochreate, (vi) foliaceous, (vii) tendrillar, (viii) spinous and (ix) bud scales. Annual lespedezas are fine-stemmed, leafy legumes with shallow taproots. (i) Free-lateral stipules-These are tiny slender free outgrowths on both sides of the petiole at the base. Stipules. The stipules may be either attached to the leaf base or are present on both sides as lateral outgrowths. They are short-day legumes that begin flowering in late August and set seed in mid-September to mid-October. In plants like paddy, wheat, and other monocotyledons, this leaf base is wide and masks the stem. Some stipules â¦ Pair or ootarowths developed at the base of the petiole of a leaf are called stipules. Leaf base has two small leaf-like structure called stipules. Types of Lespedeza Annual. If the stipules are present. the leaf is called stipulate. Persistent stipules remain attached to the plant. ... Plants show three types of phyllotaxy- alternate, opposite and whorled types of phyllotaxy. Types of Stipules: Stipules may be classified into the following three types based on the duration for which they remain attached to the leaf base: 1. Other articles where Stipule is discussed: angiosperm: Leaves: â¦of a leaf base, two stipules, a petiole, and a blade (lamina). The leaf base is the slightly expanded area where the leaf attaches to the stem. Stipules are present in many angiosperm plants. Leaves with stipules are called stipulate and those without are called exstipulate. The main difference between stipules and bracts is that stipules are the leaf-like structures present on the leaf base, but bracts are the leaf-like structures present on the base of the inflorescence. According to shape, size and position This type of violet grows throughout most of the northeastern United States, and it blooms from early to late spring. Types According to duration. The paired stipules, when present, are located on each side of the leaf base and may resemble scales, spines, glands, or leaflike structures.â¦ Both annual and perennial types grow in a soil pH range of 4.5â7.0. The basic components of leaves in flowering plants (angiosperms) include the blade, the petiole, and the stipules. .