Castilleja pilosa var. steenensis |
Castilleja pilosa var. longispica |
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Steen's Mountain paintbrush, Steens Indian paintbrush |
longspike Indian paintbrush, white paintbrush |
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Stems | hairs retrorse or spreading, ± curved, stiff, 0.5–0.8(–1) mm. |
hairs spreading or retrorse and curved, soft. |
Leaf | lobes widely spreading. |
lobes ascending-spreading. |
Inflorescences | 2.5–10 cm; bracts proximally greenish, light dusky pink, or salmon, with margins or distal portions the same color or yellow or white, 3–5-lobed; lobes spreading to ascending, short to long, arising below mid length. |
2–16 cm; bracts proximally light green, or yellow-green, sometimes becoming pink or dull purple, with margins or distal portions pale yellow, sometimes soft pink or buff, 3–5(–9)-lobed; lobes erect, sometimes spreading, short to medium length, arising near or above mid length. |
Corolla | beaks 4.5–6.5 mm; abaxial lip purple or pink, sometimes pale yellow, distally sometimes white, 3.5–6 mm, 75–100% as long as beak; teeth white or pale yellow. |
beaks 4–7 mm; abaxial lip proximally green or pale yellow, sometimes dull purple, distally white to sometimes pink, 2.5–5 mm, 50–85% as long as beak; teeth white to pale yellow, rarely pink. |
Calyces | (12–)14–20(–28) mm; abaxial and adaxial clefts 5–12 mm, 45–50% of calyx length, lateral 5–12 mm, 45–50% of calyx length; lobes linear to lanceolate. |
9–15(–20) mm; abaxial and adaxial clefts 2–7 mm, 40–45% of calyx length, lateral 2–5.5 mm, 40–50% of calyx length; lobes linear or narrowly triangular. |
2n | = 24, 48, 96. |
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Castilleja pilosa var. steenensis |
Castilleja pilosa var. longispica |
|
Phenology | Flowering May–Aug. | Flowering Jun–Aug. |
Habitat | Rocky slopes, ledges, dry meadows, sagebrush steppes, subalpine to alpine, volcanic soils. | Moist to dry meadows, sagebrush steppes, woodlands, rocky slopes, ridges, montane. |
Elevation | (1900–)2000–2900 m. ((6200–)6600–9500 ft.) | 1700–2000 m. (5600–6600 ft.) |
Distribution |
OR |
ID; MT; WY |
Discussion | Variety steenensis is endemic to the upper elevations of Steens Mountain in Harney County. It appears distinct when seen in its dwarfed form on the highest slopes; some transitional plants exist at lower elevations where it encounters var. pilosa. Genetic studies of this complex are in progress. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Variety longispica is distributed across central and southeastern Idaho, as well as adjacent Montana and Wyoming. This variety is often somewhat variable in color within populations, ranging from pale greenish yellow to various shades of pale pink to pale purple. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 645. | FNA vol. 17, p. 645. |
Parent taxa | Orobanchaceae > Castilleja > Castilleja pilosa | Orobanchaceae > Castilleja > Castilleja pilosa |
Sibling taxa | ||
Synonyms | C. steenensis | C. longispica |
Name authority | (Pennell) N. H. Holmgren: in A. Cronquist et al., Intermount. Fl. 4: 480. (1984) | (A. Nelson) N. H. Holmgren: in A. Cronquist et al., Intermount. Fl. 4: 480. (1984) |
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