Wilhelmsia

Short description: Genus of flowering plants

Wilhelmsia

Scientific classification
Kingdom:  | Plantae
Clade:  | Tracheophytes
Clade:  | Angiosperms
Clade:  | Eudicots
Order:  | Caryophyllales
Family:  | Caryophyllaceae
Genus:  | Wilhelmsia
Rchb.[2]
Species:  |

W. physodes

Binomial name
Wilhelmsia physodes

(Fisch. ex Ser.) McNeill[1]

Synonyms[5]

* Arenaria physodes Fisch. ex Ser.[3]
* Merckia physodes (Fisch. ex Ser.) Fisch. ex Cham. & Schltdl.[4]

Wilhelmsia is a monotypic genus of plants in the family Caryophyllaceae. It contains only one species, Wilhelmsia physodes, native to Alaska, northern Canada (Yukon and Northwest Territories), and Russia .[6][7]

Wilhelmsia physodes is distinctive in the family because of its large, inflated ovary that develops into a round, purple capsule up to 10 mm in diameter, partially septate (divided inside) into 3 compartments, each with 2 teeth on the outside. The plant is a perennial herb spreading by means of underground rhizomes. Stems are generally prostrated except for the upright flowering stalk. Leaves are up to 15 mm. Sepals are green, tinged with purple. Petals are white. [6][8][9][10]

## References

1. ↑ McNeill, John. 1960. Taxon 9(4): 110.
2. ↑ Heinrich Gottlieb Ludwig Reichenbach. 1828. Conspectus Regni Vegetabilis 206.
3. ↑ Seringe, Nicolas Charles, in Candolle, Augustin Pyramus de. 1824. Prodromus Systematis Naturalis Regni Vegetabilis 1: 413
4. ↑ Chamisso, Ludolf Karl Adelbert von, & Schlechtendal, Diederich Franz Leonhard von. 1826. Linnaea 1(1): 59.
5. ↑ Tropicos
6. ↑ 6.0 6.1 Flora of North America vol 5
7. ↑ Czerepanov, S. K. 1981. Sosudistye Rasteniia SSSR. 509 pages. Nauka, Leningradskoe Otd-nie, Leningrad.
8. ↑ Cody, W. J. 1996. Flora of Yukon Terr. i–xvii, 1–669. NRC Research Press, Ottawa.
9. ↑ Hultén, E. 1968. Flora of Alaska i–xxi, 1–1008. Stanford University Press, Stanford.
10. ↑ Toolik Arctic Geobotanical Atlas, photo library, Wilhelmsia physodes

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