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单词 Heterolepis
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Heterolepis

英语百科

Heterolepis

Heterolepis aliena, flowerhead attended by pollinating beetles
Heterolepis aliena, lateral aspect of flowerhead, showing protruding stamens and pistils

Heterolepis is a genus of flowering plants in the sunflower family. It has three or four species, all endemic to the Western Cape Province in South Africa.

Heterolepis species are shrublets, typically sprawling and about 30 cm high with moderately large yellow flowers. The flowerheads are solitary with glandular peduncles, the surrounding green bracts having membranous margins, especially in the inner rows. The ray florets are female, with a thread-like lobe opposite the ray. The disk florets are bisexual. The seeds (properly speaking the fruits) are flask-shaped, silky, with a pappus of two unequal rows of bristly, barbed scales. The leaves are alternate, typically 1530 mm long, narrow or needle-like, sharply pointed, thick, and quite stiff, with the margins rolled under, woolly beneath. The rootstock is woody, and branches cobwebby. The plants occur mainly on rocky sandstone slopes in the mountains of the Western Cape in South Africa.

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更新时间:2025/6/22 7:31:06