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Silphium perfoliatum, the cup plant [2] or cup-plant, is a species of flowering plant in the family Asteraceae, native to eastern and central North America. It is an erect herbaceous perennial with triangular toothed leaves, and daisy-like yellow composite flower heads in summer. [3] The specific epithet perfoliatum means "through the leaf." [4]
The leaves vary in shape from oblong to elliptic or ovate, have rounded points at their apex, and taper towards their base. The inflorescence is composed of a corymbiform cluster of terminal cymes crowded with many yellow flowers that measure 0.8–1.5 cm (0.31–0.59 in) in width. The flowers are star-like in shape and have five petals.
Aspidistra / ˌ æ s p ɪ ˈ d ɪ s t r ə / [2] is a genus of flowering plants in the family Asparagaceae, subfamily Nolinoideae, native to eastern and southeastern Asia, particularly China and Vietnam. [1] [3] They grow in shade under trees and shrubs. Their leaves arise more or less directly from ground level, where their flowers also appear.
The plant's flowers are yellow and grow up to an inch in diameter, with five petals attached at the base. Flowers grow on stalks and can either be found in clusters or individually where the stalk meets the leaf stem. [4] Pod-like capsules produced by the plant consist of 12-15 wood segments that form cup-like rings.
Each individual flower has five minute petals and ten stamens. When the flowers open, the inflorescence looks like a puffy yellow ball, with usually only the long yellow stamens visible. The inflorescence rests solitary at the end of a slender stalk. Like some Mimosa, the leaves of this plant exhibit rapid plant movement. They will close upon ...
The plant grows 3-8 feet tall with an unbranched stem until reaching the inflorescence at the very top. [5] Its yellow flower heads, which bloom in late summer through early fall, are 1-2 inches wide and consist of up to 10 bright yellow ray florets that are angled downward, each bearing a notch at the end, as well as a spherical cluster of ...