Search results
Results From The WOW.Com Content Network
Some apply it to the leaflets of a pinna, especially the leaflets of bipinnate or tripinnate leaves. [7] Others also or alternatively apply it to second or third order divisions of a bipinnate or tripinnate leaf. [8] It is the ultimate free division (or leaflet) of a compound leaf, or a pinnate subdivision of a multipinnate leaf.
Chart illustrating leaf morphology terms. The following terms are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflets). [1]
bipinnate Doubly pinnate; e.g. a compound leaf with individual leaflet s pinnately divided. bipinnatisect A pinnatisect leaf with deeply dissected segments. bisexual Bearing both male and female reproductive organs; usually, flowers with both stamen s and carpel s; synonymous with hermaphrodite, synoecious, and monoclinous.
Desmostachya bipinnata, commonly known as halfa grass, big cordgrass, and salt reed-grass, [3] is an Old World perennial grass, long known and used in human history. The grass is tall, tufted, leafy, perennial grass, branching from the base, erect from a stout creeping rootstock.
It is a deciduous tree growing to 15–25 m (rarely up to 50 m) tall, with a trunk diameter of up to 1 m belonging to Family Leguminosae and sub-family Caesalpiniaceaea. . The leaves are bipinnate, 30–60 cm long, with 16–20 pinnae, each pinna with 20–40 oval leaflets 8–25 mm long and 4–10 mm br
If a frond is divided once into pinnae, the frond is called once pinnate. In some fronds the pinnae are further divided into segments, creating a bipinnate frond. The segments into which each pinna are divided are called pinnules, and the extensions of the rachis that support these pinnules, are called rachillae. [7]
Leaves are pinnate or bipinnate, with leaflets. Between one and six pairs of leaflets on the leaf stem. Leaflets of sub species sambucifolia are toothed, ovate in shape. The other sub species leaves are not toothed. Leaflets 2 to 20 cm long. Leaves glossy green above, dull glaucous below.
The leaves are bipinnate or are modified to vertically oriented phyllodes. A few have cladodes rather than leaves. [38] Extrafloral nectaries may be present on the petiole and rachis, and the pinnule tips may carry protein-lipid Beltian bodies. [37] The leaflets are usually opposite, and are carried on shortly stalks or are sessile.