Castilleja mendocinensis
Castilleja hololeuca
Mendocino coast Indian paintbrush, Mendocino coast paintbrush
Channel Islands paintbrush, island paintbrush, island white-felted paintbrush, white-felted paintbrush
few to many, decumbent to ascending, much-branched, with leafy axillary shoots, villous, hairs spreading, long, stiff to soft, eglandular, mixed with short-glandular ones.
many, erect to spreading, much-branched with many short axillary shoots, proximal stems reaching 1+ cm wide, white-felted, hairs dense, spreading to ± appressed, intertwined, long, soft, slightly branched, obscuring surface.
gray-green becoming ± purple, or green, ± cup-shaped, oblong to narrowly elliptic or suborbicular, 0.5–2(–5) cm, ± fleshy, cupulate throughout, sometimes obscurely so on distal portion of stem, margins plane, flat to involute, 0–3-lobed, apex rounded;
lobes ascending, oblong to rounded, apex truncate or rounded, sometimes ± acute.
ash gray, leaves of previous year persisting on proximal stem, linear, older leaves sometimes broadly linear, 1–5 cm, not fleshy, margins plane, involute, 0-lobed, apex obtuse;
lobes ascending, linear-lanceolate, apex obtuse to rounded, sometimes acute.
5–23 × 1.5–3.5 cm;
bracts proximally greenish, distally bright red or red-orange, sometimes orange, oblong, ovate, or widely cuneate to widely obovate to suborbiculate, sometimes cup-shaped, 0–3-lobed, sometimes with 3 additional shallow teeth at tip of central lobe;
lobes erect, oblong to broadly triangular, short, arising above mid length, apex truncate, rounded, or obtuse, lateral ones sometimes acute.
3–16 × 2–4 cm;
bracts pale gray-green throughout, or proximally pale gray-green, distally red or yellow, proximal linear, distal broader, often oblanceolate to obovate, (0–)3-lobed;
lobes spreading, linear to oblong, short to long, arising below mid length, apex rounded to truncate or acute.
straight or slightly curved, 28–45 mm;
tube 18–20 mm;
beak exserted, adaxially green or yellow-green, 15–25 mm;
abaxial lip deep green, reduced, visible in front cleft, 1–1.5 mm, 10% as long as beak;
teeth incurved, green, 0.5–1 mm.
slightly curved in proximal 1/3, 14–26(–31) mm;
tube 9–17 mm;
abaxial lip not exserted, beak exserted;
beak adaxially green to yellowish, 11–14 mm;
abaxial lip ascending, deep green, reduced, 2–3 mm, less than 33% as long as beak;
teeth reduced to apiculations, deep green, 1–1.5 mm.
colored as bracts, often with a yellow central band, 20–31 mm;
abaxial and adaxial clefts 8–12 mm, ca. 50% of calyx length, deeper than laterals, lateral 2–6 mm, 10–15% of calyx length;
lobes oblong to broadly or narrowly triangular, apex obtuse or rounded, sometimes acute.
colored as bracts, with conspicuous whitish veins, 14–18(–20) mm;
abaxial and adaxial clefts 5–12 mm, 30–67% of calyx length, deeper than laterals, lateral 0 mm or nearly so, ca. 0% of calyx length;
lobes linear-lanceolate, apex rounded, truncate, or emarginate.
= 72.
Castilleja mendocinensis
Castilleja hololeuca
Castilleja mendocinensis is a coastal plant from Mendocino County, California, northward to Curry County, Oregon. Its close relative, C. latifolia, occurs in similar habitats south of San Francisco Bay. There is one known population in Oregon, and a number of California localities are threatened by coastal development.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Castilleja hololeuca is endemic to the four major islands of the northern Channel Islands. It is similar to C. lanata, a mostly Mexican species that reaches Arizona, New Mexico, and southwest Texas. However, C. hololeuca appears to be more closely related to C. foliolosa, a species of the California mainland. These three species, and C. galehintoniae G. L. Nesom of Nuevo León, all share a distinctive, thick indument of pale, matted, and often branched hairs on the stems and leaves. Large individuals of C. hololeuca form thick, woody trunks. On Anacapa Island, closest to the mainland, red-flowered forms of C. hololeuca predominate. On Santa Cruz Island, to the west, both red- and yellow-bracted forms are fairly common, usually in separate populations. Further offshore, on San Miguel and Santa Rosa islands, most plants are yellow to, occasionally, peach in coloration. Reports of this species from Santa Barbara and Santa Catalina Islands are referable to other species, mostly C. foliolosa. Populations of C. hololeuca historically declined from grazing by introduced game and livestock species. The plants are recovering well, following removal of the grazing animals, and are now common in many areas, especially on San Miguel Island.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
