Schoenia filifolia
From Wikipedia, the free encyclopedia
| Schoenia filifolia | |
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Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Schoenia |
| Species: | S. filifolia |
| Binomial name | |
| Schoenia filifolia | |
| Synonyms[1] | |
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Schoenia filifolia is a species of flowering plant in the family Asteraceae, and is endemic to the southwest of Western Australia. It is an annual herb with terete leaves and yellow, daisy-like inflorescences.
Taxonomy
This species was first formally described in 1851 by Nikolai Turczaninow who gave it the name Xanthochrysum filifolium in the Bulletin de la Société Impériale des Naturalistes de Moscou from specimens collected by James Drummond.[4] In 1992, Paul Graham Wilson changed the name to Schoenia filifolia in the journal Nuytsia.[3][5] The specific epithet (filifolia) means "thread-leaved".[6]
In the same edition of Nuytsia, Wilson described three subspecies of S. filifolia and the names are accepted by the Australian Plant Census:
- Schoenia filifolia subsp. arenicola Paul G.Wilson[7] is an erect, annual herb, the heads of flowers arranged in an open corymb, the involucre cylindrical with the innermost bracts yellow, the ray florets 3–6 mm (0.12–0.24 in) long, flowering in August and September and the fruit a terete achene.[3][8]
- Schoenia filifolia (Turcz.) Paul G.Wilsonsubsp. filifolia[9] is an erect, often multi-stemmed, annual herb, the involucre top-shaped with the innermost bracts white, the ray florets 3–6 mm (0.12–0.24 in) long, flowering from July to November, and the fruit an oval achene.[3][10]
- Schoenia filifolia subsp. subulifolia (F.Muell.) Paul G.Wilson[11] is an annual herb, the involucre hemispherical, the ray florets 7–10 mm (0.28–0.39 in) long, flowering in September and October, and the fruit an achene that is longer and hairier than those of the other two subspecies.[3][12]