Castilleja minor var. stenantha

(A. Gray) J. M. Egger

Phytologia 90: 73. 2008.

Common names: Thread-torch California thread-torch
Illustrated
Basionyms: Castilleja stenantha A. Gray in A. Gray et al. Syn. Fl. N. Amer. 2(1): 295. 1878
Treatment appears in FNA Volume 17. Treatment on page 631. Mentioned on page 627, 630.

Herbs 2.8–10 (–15) dm. Stems: hairs sparse to dense, short to long, soft, sparsely stipitate-glandular. Leaves linear-lanceolate to lanceolate, soft, margins plane. Bracts distally red to pale orange, linear to narrowly lanceolate, apex acuminate. Calyces 14–22 (–28) mm; abaxial and adaxial clefts 7–15 mm, 50–60% of calyx length, lateral 1–1.5 (–3) mm, 10–20% of calyx length; lobes linear to narrowly triangular, apex acute to acuminate. Corollas 23–39 mm; beak exserted, adaxially light reddish-brown, yellowish, pale orange, or reddish orange, 8–15 (–20) mm; abaxial lip whitish, rarely greenish or pale-yellow (sometimes red in in c Arizona).


Phenology: Flowering Feb–Sep.
Habitat: Riparian zones, chaparral, wet cliffs, often over serpentine.
Elevation: 0–2500 m.

Distribution

Ariz., Calif., Mexico (Baja California)

Discussion

Variety stenantha is most common in central and southern California west of the Sierra Nevada crest, southward to at least the Sierra San Pedro Mártir in Baja California. It is associated with serpentine, granite, and other substrates.

Selected References

None.

Lower Taxa

None.

0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
pale-yellow +, greenish +  and whitish +
Acute (?) +  and Acuminate (?) +
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
(A. Gray) J. M. Egger +
Castilleja stenantha +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
not +, leathery +  and fleshy +
distally red;pale orange +
linear +  and narrowly lanceolate +
2.2 cm22 mm <br />0.022 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
yellowish green +  and green +
2-lobed +, lobed +  and tubular +
1.4 cm14 mm <br />0.014 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
taprooted;fibrous-rooted or rhizomatous +
fleshy +  and woody +
Thread-torch +  and California thread-torch +
purple +, pink +, red +, orange +, yellow +, white +, green +  and pale greenish +
colored +, green +, red-violet +, red +, deep +, white +  and yellow +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
2.3 cm23 mm <br />0.023 m <br /> (3.9 cm39 mm <br />0.039 m <br />) +
Ariz. +, Calif. +  and Mexico (Baja California) +
0–2500 m. +
spreading-hairy +  and glabrous +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Riparian zones, chaparral, wet cliffs, often over serpentine. +
sparse +  and dense +
stipitate-glandular +
short to long +
axillary +  and terminal +
spiral +, whorled +, alternate +  and opposite +
purple +  and more or less gray +
deciduous +
basal +  and cauline +
linear-lanceolate;lanceolate +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
not fleshy +
3 +, 2 +  and 4 +
linear +  and narrowly triangular +
subequal +
tenuinucellate +  and unitegmic +
campylotropous-like +
Flowering Feb–Sep. +
20 +  and 100 +
trapezoidal +, oblong-ovoid +, pyramidal +  and ovoid +
Illustrated +
non-secund +  and secund +
elongate +
subequal +
branched +  and unbranched +
sprawling +  and prostrate +
aerial +  and subterranean +
not fleshy +
2-lobed +  and entire +
Euchroma +  and Oncorhynchus +
Castilleja minor var. stenantha +
Castilleja minor +
variety +
red-purple +, red +, yellow +, white +  and green +
shallow;deep +
spreading +  and strongly incurved +
reduced +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +