Castilleja rubida |
Castilleja parvula |
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little reddish Indian paintbrush, purple alpine paintbrush, purple paintbrush, Wallowa alpine paintbrush |
Tushar Indian paintbrush, Tushar Mountains paintbrush, Tushar Plateau Indian paintbrush |
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Habit | Herbs, perennial, 0.5–1.5 dm; from a woody caudex; with a taproot. | Herbs, perennial, 1–2 dm; from a woody caudex; with a taproot or stout, branched roots. |
Stems | several, decumbent, or ascending, unbranched, hairs moderately dense, spreading, short and long, soft, eglandular and glandular. |
several to many, decumbent to ascending, unbranched except for small, leafy axillary shoots, hairs retrorse, short proximally, spreading, longer distally, soft, stipitate-glandular. |
Leaves | green to purple, linear to narrowly lanceolate, 0.7–3.2 cm, not fleshy, margins plane, slightly involute, 3–5-lobed, apex narrowly acute to acuminate; lobes ascending-spreading, narrowly linear to filiform, often curling, often short, apex acute or obtuse. |
green to blackish, proximalmost small and scalelike, linear to narrowly or broadly lanceolate, 1–3(–4) cm, not fleshy, margins plane, involute, 0(–3)-lobed, apex obtuse to rounded; lobes ascending, linear or short-lanceolate, very small, apex acute to obtuse. |
Inflorescences | 2.5–6 × 1–2 cm; bracts purple, deep burgundy, or lavender throughout, rarely pink or yellowish white throughout, sometimes pink or dull whitish on distal margins and apices, oblong, 3–5(–7)-lobed; lobes spreading, linear, medium length, proximal lobes arising below mid length, center lobe apex rounded to obtuse, lateral ones acute to obtuse. |
4–6.5 × 1–3 cm; bracts proximally greenish to deep purple near base, distally magenta, deep pink, or red, broadly lanceolate to elliptic, oblong, or ovate, 0–5-lobed; lobes ascending to erect, triangular to oblong, short, arising near apex, central lobe apex rounded, lateral ones acute to rounded. |
Corollas | straight, 12–15 mm; tube 14–16 mm; abaxial lip and beak exserted; beak adaxially green, 5–6 mm; abaxial lip colored as distal portion of bracts, prominent, pouches 3, central one grooved, pouches not strongly inflated, 4–5 mm, 80–100% as long as beak; teeth erect, appressed to beak, colored as distal portions of bracts, 1.5–2.5 mm. |
straight, 16–24 mm; tube 10–13(–15) mm; beak exserted, adaxially green, 4.5–8(–9) mm; abaxial lip green to deep purple, reduced, 1–3 mm, 40–45% as long as beak; teeth incurved, greenish, (0.5–)1–2.5 mm. |
Calyces | colored as bracts, 10–12 mm; all 4 clefts subequal, 3.5–6.5 mm, 35–55% of calyx length; lobes broadly linear or linear-triangular, apex obtuse to acute. |
colored as bracts, 12–18 mm; abaxial and adaxial clefts 5.5–8.5(–10) mm, ca. 50% of calyx length, deeper than laterals, lateral 1–3(–5) mm, ca. 25% of calyx length; lobes broadly linear or narrowly triangular, apex acute to obtuse, sometimes rounded. |
Stigmas | green. |
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2n | = 24. |
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Castilleja rubida |
Castilleja parvula |
|
Phenology | Flowering Jul–Aug. | Flowering Jun–Aug. |
Habitat | Rocky slopes, ledges, dry to moist gravelly flats and ridges, alpine, limestone, rarely on river cobbles at lower elevations. | Gravelly meadows, rocky slopes, talus, ridges, krummholz zone or alpine. |
Elevation | 2200–3000 m. (7200–9800 ft.) | 2700–3700 m. (8900–12100 ft.) |
Distribution |
OR |
UT
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Discussion | Castilleja rubida is a rare alpine species endemic to a few limestone peaks in the Wallowa Mountains of northeastern Oregon, entirely within the Eagle Cap Wilderness Area. It is likely derived from the C. nana complex, found in the mountains of eastern California and Nevada, but it is amply distinct. Due to its very limited range and small population numbers, C. rubida is a species of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Castilleja parvula is limited to the upper elevations of the Tushar Mountains. Morphologically, it appears to be a species derived from the widespread Rocky Mountains species C. rhexiifolia. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 653. | FNA vol. 17, p. 642. |
Parent taxa | Orobanchaceae > Castilleja | Orobanchaceae > Castilleja |
Sibling taxa | ||
Name authority | Piper: Bull. Torrey Bot. Club 27: 398. (1900) — (as Castilleia) | Rydberg: Bull. Torrey Bot. Club 34: 40. (1907) |
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