Castilleja ornata
Castilleja montigena
glowing Indian paintbrush, ornate paintbrush
Heckard's Indian paintbrush, Heckard's paintbrush
solitary or few to several, erect or ascending, often branched low on stem, unbranched distally, hairs appressed or retrorse, medium length, soft, eglandular, mixed with shorter stipitate-glandular ones.
few to several, decumbent to erect, sometimes leaning, unbranched or often much-branched distally, with a few short, leafy axillary shoots, hairs spreading, short, soft, stipitate-glandular, mixed with long-spreading, eglandular ones.
green or purple-tinged, proximal forming a rosette, linear-lanceolate to oblong or oblanceolate, 2–4 cm, not fleshy, clasping, margins wavy, sometimes plane, involute, 0-lobed, apex acuminate, acute, or obtuse.
gray-green, sometimes green, lanceolate-linear to narrowly lanceolate, 1–6.5 cm, not fleshy, margins plane, sometimes wavy, flat to involute, 0(–3)-lobed, apex acuminate;
lobes spreading-ascending, linear to narrowly lanceolate, apex acute.
3–24 × 1.5–3 cm;
bracts proximally green, distally white, sometimes very pale yellow, often aging dull pink or dull red-purple, spatulate, 0-lobed, sometimes seeming lobed due to wavy margins, apex obtuse to rounded.
3–30 × 3–4 cm;
bracts proximally green to dark purplish, distally red to crimson, sometimes pale salmon, linear-lanceolate to broadly lanceolate, 3–5-lobed;
lobes spreading, linear, long, arising below mid length, apex acute, sometimes obtuse.
slightly curved, 22–24 mm;
tube 10–13 mm;
beak exserted, adaxially green, 5–10 mm;
abaxial lip pale greenish, reduced, pouches 3, 0.5–1.5 mm, 5–10% as long as beak;
teeth slightly incurved, reduced, pale greenish to white, 0.3–0.7 mm.
straight or slightly curved, 20–40 mm;
tube 15–23 mm;
abaxial lip exserted to included, beak much exserted;
beak adaxially yellow-green to reddish, 9–18 mm;
abaxial lip green, reduced, 0.5–1.5 mm, 5–20% as long as beak;
teeth incurved, green, (0–)0.5–1.5 mm.
green throughout or distal margin white aging pink, 15–17 mm;
abaxial and adaxial clefts 6–14 mm, 35–45% of calyx length, deeper than laterals, lateral 0(–0.7) mm, 0(–5)% of calyx length;
lobes short-triangular, abaxial segments longer than adaxials, apex acute to obtuse or rounded.
colored as bracts, 15–20 mm;
abaxial clefts 3.4–6.2 mm, adaxial 4.5–9 mm, clefts 25–33% of calyx length, deeper than laterals, lateral 0.5–2 mm, 5–10% of calyx length;
lobes narrowly triangular, often slightly unequal, apex acute.
= 24.
= 48, 72.
Castilleja ornata
Castilleja montigena
Castilleja ornata is known from Chihuahua and northern Durango, Mexico, but much of its seasonally moist grassland habitat is now altered by grazing or agriculture, and there are no recent sightings of the species south of the United States border. There is a recently discovered population in southwestern New Mexico, in the southern Animas Valley of Hidalgo County. While very rare, C. ornata lacks federal protection. The small Animas Valley population is the last known extant occurrence, and this population was reduced to two individuals in a census conducted in 2017 (D. Roth, pers. comm.). The species appears to be critically endangered globally and in need of conservation management.
The inflorescences of Castilleja ornata have pale greenish bracts with white apices when young, but the apices often become pale pink to dull reddish with age. Its pubescence, wavy-margined leaves, and unusual bract color also distinguish C. ornata. Castilleja exserta and C. minor are the only other annual paintbrushes in New Mexico and differ from C. ornata by the color of their floral bract apices, which are usually pink to red-purple in C. exserta and bright red in C. minor.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Castilleja montigena is endemic to the northeastern portion of the San Bernardino Mountains of southern California. In the field, this species is consistently and relatively easily distinguished from nearby populations of C. martini var. martini, which it essentially replaces in the northeastern portion of the San Bernardino Mountains. It is apparently of allopolyploid hybrid origin between C. martini var. martini and C. chromosa, which approaches its range from the adjacent Mojave Desert.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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