Castilleja viscidula
Castilleja thompsonii
sticky Indian paintbrush, sticky paintbrush
Thompson's Indian paintbrush, Thompson's owl clover, Thompson's paintbrush
several, ascending to erect, decumbent at base, unbranched, sometimes branched, hairs spreading, long, soft, mixed with shorter stipitate-glandular ones.
few to many, erect or ascending, unbranched or branched, hairs spreading, long, stiff, sometimes soft (especially in higher elevations), eglandular, mixed with shorter stipitate-glandular ones.
green to brown, linear, linear-lanceolate, lanceolate, or oblong (narrowly ovate nearing inflorescence), 1–4(–5) cm, not fleshy, margins wavy, flat or involute, (0–)2(–5)-lobed, apex acute;
lobes ascending-spreading, oblong to narrowly lanceolate, apex acute or obtuse.
green to purple or reddish brown, linear to narrowly oblong or linear-lanceolate, 1.4–7.4 cm, not fleshy, margins plane to ± wavy, involute or flat, 3(–7)-lobed, apex acuminate;
lobes spreading-ascending, linear, short to long moving up leaf axis, apex acute or obtuse.
2–14 × 1–3.5 cm;
bracts proximally greenish to greenish brown, distally pale yellow, cream, or yellow-green, sometimes yellow-orange or red (sometimes gradually differentiated from proximal coloration), lanceolate, broadly lanceolate, or oblong, 3(–5)-lobed, proximal wavy-margined;
lobes ascending, linear to narrowly lanceolate, long, arising near or above mid length, sometimes wavy-margined, apex acute to rounded.
2.5–14 × 1–4 cm;
bracts greenish to pale yellow or reddish brown throughout, or proximally greenish to dull reddish purple, or ruddy brown, distally greenish to yellow-green or yellow, often aging dull reddish to dull purplish, lanceolate to oblong to ovate, 3–5(–9)-lobed;
lobes spreading to ascending, linear to narrowly lanceolate, long, proximal lobes arising below mid length, apex acute to obtuse.
straight, 16–22(–25) mm;
tube 10–15 mm;
beak exserted, straight to sometimes curved, adaxially green to yellow, 5–8(–9) mm;
abaxial lip green or yellow, sometimes deep purple, reduced, inconspicuous, often visible in abaxial cleft, 1–2 mm, 20% as long as beak;
teeth erect, green to white, sometimes yellow or pink, 0.5–1 mm.
straight, 18–21 mm;
tube 11–16 mm; subequal to calyx, sometimes beak exserted;
beak adaxially green, 5–7(–8) mm;
abaxial lip white, often proximally reddish, prominent, scarcely expanded, ± cylindric, 2.5–4(–5) mm, 50–70% as long as beak, glabrous or obscurely puberulent;
teeth incurved to erect, white, 2.5 mm.
colored as bracts or proximally paler, (10–)14–18 mm;
abaxial and adaxial clefts (4–)5–9 mm, 30–40% of calyx length, deeper than laterals, lateral (1–)2–6 mm, ca. 25% of calyx length;
lobes narrowly ovate to lanceolate, linear, or narrowly lanceolate, apex acute to obtuse.
colored as bracts, 12–25 mm;
abaxial and adaxial clefts 4–8 mm, 20–60% of calyx length, deeper than laterals, lateral (0–)1–3 mm, 7–25% of calyx length;
lobes linear, lanceolate, or triangular, apex acute, sometimes obtuse.
= 24, 72.
= 24, 48.
Castilleja viscidula
Castilleja thompsonii
Castilleja viscidula is a member of the complex including C. applegatei and C. martini, centered in California. Castilleja viscidula favors isolated mountain ranges, from the Wallowa and, possibly, the Blue mountains of northeastern Oregon, eastward into southwestern Idaho, and southward into central Nevada. Most populations are greenish yellow, but in one portion of the Wallowa Mountains, reddish bracted plants are common. Many yellowish bracted populations in the same mountain range surround this reddish population. Intermediate color forms are rarely encountered. Most ranges where C. viscidula occurs have generated slightly differing local races, demonstrating some reproductive isolation and divergence. In addition, hybrid swarms between this species and C. nana are known from several mountain ranges in central and northern Nevada, and an apparent hybrid with C. flava var. flava is known from the Independence Mountains of northern Nevada.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Castilleja thompsonii is a characteristic species of the sagebrush communities on the eastern slope of the Cascade Range in Washington, and in the high deserts of the Columbia Basin. Historically, its range approached but apparently never entered Idaho in the Spokane River valley, but much of its habitat in that area is now converted to agriculture or suburban development or overwhelmed by non-native, invasive plants. Castilleja thompsonii occurs in a few sites in the Okanogan Valley region of southern British Columbia and at one site on the eastern slopes of the Cascade Range in Wasco County, Oregon. A distinctive form from the subalpine and alpine zones of Mt. Adams, in the southern Cascade Range of Washington, was named C. villicaulis. This form may merit varietal status under C. thompsonii. While both names were described in the same paper, C. thompsonii is the name used in all regional floras since their publication, after C. villicaulis was reduced to synonymy by M. Ownbey (1959).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
OR
CalFlora
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
BC
WA
