Difference between revisions of "Castilleja aquariensis"

N. H. Holmgren

Bull. Torrey Bot. Club 100: 87, fig. 3. 1973.

Common names: Aquarius Plateau paintbrush
EndemicConservation concern
Treatment appears in FNA Volume 17. Treatment on page 589. Mentioned on page 578.
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|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V17/V17_1031.xml
 
|genus=Castilleja
 
|genus=Castilleja
 
|species=Castilleja aquariensis
 
|species=Castilleja aquariensis

Revision as of 20:20, 27 May 2020

Herbs, perennial, 1.1–3.9 dm; from a woody caudex; with numerous, thickened roots. Stems few to several, ascending to erect, unbranched, hairs moderately dense, often retrorse, short, ± stiff, stipitate-glandular distally only in inflorescence. Leaves appressed-ascending, green to purplish, linear to narrowly lanceolate, distal sometimes broadly lanceolate, (1–)2.5–4(–5.5) cm, not fleshy, margins plane, involute, 0(–5)-lobed, apex rounded to acuminate; lobes ascending, linear to narrowly lanceolate, apex acute. Inflorescences 2–7 × 1.5–2 cm; bracts proximally pale green to pale yellow-green, distally pale to bright yellow or cream, rarely pale orange, elliptic, narrowly ovate, elliptic-oblong, broadly lanceolate, or ovate, (0–)3(–5)-lobed; lobes ascending or spreading, narrowly lanceolate, short, arising near tip on distal bracts, central lobe apex rounded to truncate, lateral ones acute to rounded. Calyces proximally green to yellowish, distal 1/2 yellow, (16–)18–25 mm; abaxial and adaxial clefts (8–)9.5–12.5 mm, 50% of calyx length, deeper than laterals, lateral 0.5–5(–6) mm, 5–20% of calyx length; lobes lanceolate to ovate, apex acute to obtuse. Corollas straight, 17–25 mm; tube 9–13 mm; beak exserted, adaxially green, 6–8(–12) mm, margins red or reddish brown, short-hairy; abaxial lip green, reduced, sometimes exserted, 1.5–2 mm, 10–15% as long as beak, glabrous; teeth erect, green, 0.5–1.5 mm.


Phenology: Flowering Jun–Aug.
Habitat: Meadows with sagebrush, openings in spruce-fir forests.
Elevation: 2900–3400 m.

Discussion

Castilleja aquariensis is endemic to the Aquarius Plateau in the mountains of south-central Utah. Its meadow habitats were severely degraded by livestock grazing, and at one time the species was a candidate for listing under the Endangered Species Act of the United States. It is still a species of management concern.

Castilleja aquariensis is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Selected References

None.

Lower Taxa

None.
... more about "Castilleja aquariensis"
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
N. H. Holmgren +
Aquarius Plateau paintbrush +
2900–3400 m. +
Meadows with sagebrush, openings in spruce-fir forests. +
Flowering Jun–Aug. +
Bull. Torrey Bot. Club +
Endemic +  and Conservation concern +
Euchroma +  and Oncorhynchus +
Castilleja aquariensis +
Castilleja +
species +