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Packera obovata is an erect perennial herb growing to a height of up to 2 ft (60 cm). It has fibrous roots and a basal rosette of leaves up to 1 ft (30 cm) across. The basal leaves are mid-green and hairless, circular, oval or obovate in shape and have crinkly toothed margins. The leaf stalks are about the same length as the leaf blades, green ...
Glechoma hederacea is an aromatic, perennial, evergreen creeper of the mint family Lamiaceae. It is commonly known as ground-ivy, gill-over-the-ground, [2] creeping charlie, alehoof, tunhoof, catsfoot, field balm, and run-away-robin. [2] It is also sometimes known as creeping jenny, but that name more commonly refers to Lysimachia nummularia ...
Stems that grow along the ground may root at the nodes. There is generally a crown of wide leaf blades which in wild species are often variegated with silver and green coloration. The inflorescence bears unisexual flowers in a spadix , with a short zone of female flowers near the base and a wider zone of male flowers nearer the tip.
The leaf sheaths are thin and translucent, 8 to 12 mm long and 5 to 8 mm wide, at the mouth they are long, otherwise glabrous or slightly hairy. Tradescantia zebrina leaves. The low-lying, slightly succulent, perennial, herbaceous plant often forms dense mats or colonies. This is done primarily by natural formation of taproots.
Spreading, mat-forming perennial herb up to 30 cm in height. Has rounded stems up to 40 cm long, rooting at nodes and with the flowering stems ascending. Leaves are fleshy, hairy, 4–9 cm long and 2–5 cm wide, serrate or irregularly toothed, normally with pairs of lateral lobes, and dark green above and lighter green below.
Chenopodium is a genus of numerous species of perennial or annual herbaceous flowering plants known as the goosefoot, which occur almost anywhere in the world. [3] It is placed in the family Amaranthaceae in the APG II system; older classification systems, notably the widely used Cronquist system, separate it and its relatives as Chenopodiaceae, [4] but this leaves the rest of the ...
A rosette of leaves at the base of a dandelion Rosette growth form of the liverwort Ricciocarpos natans. In botany, a rosette is a circular arrangement of leaves or of structures resembling leaves. In flowering plants, rosettes usually sit near the soil, but they can also be at the top of an otherwise naked branch or trunk.
The age of some herbaceous perennial plants can be determined by herbchronology, the analysis of annual growth rings in the secondary root xylem. [18] Herbaceous plants do not produce perennializing above-ground structures using lignin, which is a complex phenolic polymer deposited in the secondary cell wall of all vascular plants. The ...