Castilleja nivea
Castilleja haydenii
snow Indian paintbrush, snow paintbrush, snowy paintbrush
Hayden's Indian paintbrush, Hayden's paintbrush
few to several, erect to ascending, decumbent at base, unbranched except for small, leafy axillary shoots, hairs weakly spreading to appressed, ± matted, especially distally on stem, fairly short and sparse proximally, longer and denser distally, soft, eglandular, becoming woolly, often obscuring surface.
few to many, spreading to ascending, unbranched except for short, leafy shoots in axils of leaves, glabrate to distally puberulent, hairs sparse to dense, spreading, ± short, soft, sometimes stipitate-glandular.
gray with hairs, surface green to purple, linear to narrowly lanceolate, 1–3.8 cm, not fleshy, margins plane, sometimes ± wavy, involute, 0–3-lobed, apex acute;
lobes ascending-spreading, linear to narrowly lanceolate, apex acute to obtuse.
green to purple, linear or narrowly lanceolate to narrowly oblong, (1.1–)2–8 cm, not fleshy, margins plane, involute, (0–)3–7(–9)-lobed, apex acute to obtuse;
lobes spreading, linear to narrowly lanceolate, apex acuminate.
2.5–6 × 1–2.5 cm;
bracts greenish to pale yellow-green or very pale, dull purplish throughout, lanceolate to oblong, (0–)3(–5)-lobed;
lobes usually ascending, linear, medium length to long, arising near mid length, apex acute.
2.5–5.5 × 1.5–2.5 cm;
bracts rose purple, magenta, lilac, or crimson throughout, or proximally greenish to dull purplish, distally as above, lanceolate to ovate or broadly elliptic, 3–7(–13)-lobed;
lobes spreading to erect, linear to narrowly lanceolate, long or short, proximal arising below mid length, central lobe apex rounded to acute, lateral ones acute.
straight, 18–25 mm;
tube 3.5–5.5 mm; subequal to calyx, or beak and sometimes abaxial lip exserted;
beak adaxially yellow, 6–8 mm, hairs moderately long, matted on midline, very short-glandular on sides;
abaxial lip green, inconspicuous, slightly pouched, 3.5–5.5 mm, 60–90% as long as beak;
teeth erect, white or yellow, 0.5–3 mm.
straight or slightly curved, 20–25 mm;
tube 13–15 mm;
beak exserted, sometimes part of abaxial lip equal to or exceeding calyx;
beak adaxially green, 6–8 mm;
abaxial lip greenish at base, becoming white to rose pink on apices, reduced, slightly pouched, 2–3 mm, 33–50% as long as beak;
teeth ascending, white, pink, or green, 1–2.2 mm.
yellow, color mostly obscured by whitish hairs, 15–22 mm;
abaxial, adaxial, and lateral clefts (5.5–)7–12 mm, 35–55% of calyx length, often appearing shorter because matted hairs stitch proximal part of clefts shut, all 4 clefts subequal;
lobes broadly linear, apex acute.
colored as bracts, 12–26 mm;
abaxial and adaxial clefts 5–10 mm, 50% of calyx length, deeper than laterals, lateral 0.2–6 mm, 25% of calyx length;
lobes triangular, apex acute.
= 24.
= 24.
Castilleja nivea
Castilleja haydenii
Castilleja nivea is endemic to alpine habitats in the mountains of northwestern Wyoming and adjacent Montana. It forms occasional hybrids with C. pulchella, which often shares its habitat, as on the Beartooth Plateau in northwestern Wyoming.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Castilleja haydenii is endemic to high-elevation slopes in the Rocky Mountains of southern Colorado and northern New Mexico. It is known in Utah from a single collection from high elevations in the La Sal Mountains. Reports of this species elsewhere are usually attributable to C. rhexiifolia. Its affinities are uncertain. Some features are shared with C. rhexiifolia, but in other ways it resembles species such as C. lemmonii of the Sierra Nevada. Plants in the northwestern portions of its range tend to have less divided leaves. Castilleja haydenii occasionally hybridizes with C. occidentalis where the two commingle in the lower alpine zone.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
SW CO Wildflowers
