Castilleja levisecta |
Castilleja rubida |
|
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golden Indian paintbrush, golden paintbrush |
little reddish Indian paintbrush, purple alpine paintbrush, purple paintbrush, Wallowa alpine paintbrush |
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Habit | Herbs, perennial, 1–5 dm; from a woody caudex; with a taproot. | Herbs, perennial, 0.5–1.5 dm; from a woody caudex; with a taproot. |
Stems | few to many, erect, ± decumbent or creeping at base, unbranched, sometimes branched, hairs spreading, medium length and long, soft, mixed with short stipitate-glandular ones. |
several, decumbent, or ascending, unbranched, hairs moderately dense, spreading, short and long, soft, eglandular and glandular. |
Leaves | green to purple or brown-tinged, linear-lanceolate proximally, oblong-ovate or -obovate distally, 0.8–5.2 cm, not fleshy, margins plane, distalmost sometimes ± wavy, involute, 3–7(–11)-lobed, apex obtuse; lobes erect to ascending, linear to linear-spatulate, very short, toothlike, usually arising from distal 1/3 of blade, apex rounded. |
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. |
Inflorescences | 2.5–25 × 1–4 cm; bracts bright yellow throughout, or proximally greenish, distally bright yellow, sometimes deep yellow-orange, especially with age, oblong, elliptic, or obtuse to ovate, (0–)5–9(–13)-lobed, sometimes wavy-margined; lobes erect to ascending, oblong, short to medium length, arising above mid length, central lobe apex rounded, lateral ones rounded to acute. |
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. |
Corollas | straight or slightly curved, 17–28 mm; tube 12–15 mm; beak exserted, adaxially green or greenish yellow, 6–8 mm; abaxial lip yellow or greenish, reduced, not inflated, 2–3 mm, 25–33(–50)% as long as beak; teeth ascending to erect, yellow, 0.5–1.5 mm. |
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. |
Calyces | distally yellow, 13–22 mm; abaxial and adaxial clefts 4–9.5 mm, 30–40% of calyx length, deeper than laterals, lateral 2.5–4.5 mm, ca. 25% of calyx length; lobes linear to narrowly oblong or narrowly lanceolate, apex obtuse, sometimes rounded to acute. |
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. |
Stigmas | green. |
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2n | = 24. |
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Castilleja levisecta |
Castilleja rubida |
|
Phenology | Flowering Apr–Jul(–Sep). | Flowering Jul–Aug. |
Habitat | Dry meadows, upland prairie remnants, sunny headlands and coastal bluffs, rocky islands, often over glacial outwash or deposits. | Rocky slopes, ledges, dry to moist gravelly flats and ridges, alpine, limestone, rarely on river cobbles at lower elevations. |
Elevation | 0–400 m. (0–1300 ft.) | 2200–3000 m. (7200–9800 ft.) |
Distribution |
OR; WA; BC
|
OR |
Discussion | Castilleja levisecta is listed as threatened in the United States and endangered in Canada, where it is extremely rare. Most of its grassland habitat has been altered by development in the Puget Trough, and there are historical stations in the metro areas of what are now Victoria, Portland, and Seattle. For several decades, C. levisecta was considered extirpated from Oregon. However, recent reintroduction programs in Oregon and Washington have been very successful at reestablishing this species at several sites in the Willamette Valley. The bright yellow inflorescences often gradually age to a golden yellow color, unique in the genus. Castilleja levisecta is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 17, p. 621. | FNA vol. 17, p. 653. |
Parent taxa | Orobanchaceae > Castilleja | Orobanchaceae > Castilleja |
Sibling taxa | ||
Name authority | Greenman: Bot. Gaz. 25: 268. (1898) — (as Castilleia) | Piper: Bull. Torrey Bot. Club 27: 398. (1900) — (as Castilleia) |
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