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Trillium grandiflorum in the foreground and the smaller Thalictrum thalictroides in the background are both spring ephemerals of North American deciduous forests. An ephemeral plant is a plant with a very short life cycle or very short period of active growth, often one that grows only during brief periods when conditions are favorable.
Anthesis (the period of flower opening) is usually fugacious (short lived). Some of the more persistent perigones demonstrate thermonastic opening and closing (responsive to changes in temperature). About two thirds of monocots are zoophilous , predominantly by insects .
Mimosa pudica (also called sensitive plant, sleepy plant, [citation needed] action plant, humble plant, touch-me-not, touch-and-die, or shameplant) [3] [2] is a creeping annual or perennial flowering plant of the pea/legume family Fabaceae. It is often grown for its curiosity value: the sensitive compound leaves quickly fold inward and droop ...
A fleshy, swollen stem base, usually underground and functioning in the storage of food reserves, with buds naked or covered by very thin scales; a type of rootstock. cormel A small corm (or cormlet), forming at the base of a growing larger corm. [30] corneous Horny in texture; stiff and hard, but somewhat tough. Compare coriaceous. corolla
Several flowers, hundreds of which comprise the inflorescence. It produces a stemless cluster of long, rigid leaves which end in a sharp point. The leaves are 20–90 centimetres (8– 35 + 1 ⁄ 2 inches), [5] rarely to 125 cm (49 in), long and 0.7–2 cm (1 ⁄ 4 – 3 ⁄ 4 in) wide, and gray-green in color. The leaf edges are finely saw ...
It has larger flowers, with sterile bracts below the inflorescence, and lacks rhizomes. It is typically found in dry upland sites such as prairies and glades. [5] [6] Physostegia virginiana ssp. virginiana - Found further north and west. [4] It has smaller flowers that lack sterile bracts. It is patch-forming from rhizomes.
The leaf lasts one growing season. The peduncle (the primary flower stalk) can be long or short. As is typical of the Arum family, these species develop an inflorescence consisting of an elongate or ovate spathe (a sheathing bract) which usually envelops the spadix (a flower spike with a fleshy axis). The spathe can have different colors, but ...
It flowers very profusely, [50] and the large flower heads are borne on stalks 5–9 cm (2–3.5 in) above the foliage. Unlike other forms, the stems wither and die naturally after flowering, making way for more new growth and flowers. [51] The flower heads are golden yellow and measure 6 cm (2.5 in) across. [7]