Neoholmgrenia hilgardii
| Neoholmgrenia hilgardii | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Onagraceae |
| Genus: | Neoholmgrenia |
| Species: | N. hilgardii
|
| Binomial name | |
| Neoholmgrenia hilgardii Wagner, W. L. & Hoch, 2009
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Neoholmgrenia hilgardii is an annual flowering plant in the Onagraceae family with the common name Hildgard's Suncup. It is a narrow endemic native to central Washington State.[1][2][3] This species was described in 2009 by W.L.Wagner & Hoch.[4]
Description
[edit]Neoholmgrenia hilgardii is a small annual plant up to 15 cm tall, with a crowded tuft of leaves and yellow flowers atop nearly bare stems, which may be single or grow in a cluster. The linear to narrowly spatulate green leaves are up to 25 mm long and 2 mm wide, but often smaller. Both the stem and the leaves are sparsely covered with fine short appressed hairs. The proportionally-large lemon yellow flowers appear in late spring and have 4 ovate petals up to 5 mm long, born singly on short pedicels. The pedicels arise crowded among the alternate leaves and the flowers usually appear nestled near the foliage. The 8 stamens have bright yellow filaments topped by paler anthers.[2][3]
The very similar species Neoholmgrenia andina is distinguished mostly by much smaller flowers and has a wider range including Oregon and Idaho.[2]
Range and Habitat
[edit]Neoholmgrenia hilgardii grows in summer dry areas of the Columbia Plateau at moderate elevations in sparsely vegetated areas and among sagebrush. There is a possible historical record in Multnomah Country, Oregon.[2]
References
[edit]- ^ "Neoholmgrenia hilgardii (Hilgard's Suncup)". iNaturalist. Retrieved 2024-10-11.
- ^ a b c d "Neoholmgrenia hilgardii Hilgard's suncup". Burke Herbarium Image Collection.
- ^ a b Hitchcock, C.L. and Cronquist, A. 2018. Flora of the Pacific Northwest, 2nd Edition, p. 262. University of Washington Press, Seattle.
- ^ "Neoholmgrenia hilgardii (Greene) W. L. Wagner & Hoch". Catalogue of Life.