Castilleja lineariloba

(Bentham) T. I. Chuang & Heckard

Syst. Bot. 16: 657. 1991.

Common names: Thin-lobed owl’s clover
Endemic
Basionyms: Orthocarpus linearilobus Bentham Pl. Hartw., 330. 1849
Synonyms: O. mariposanus Congdon
Treatment appears in FNA Volume 17. Treatment on page 623. Mentioned on page 570, 606.

Herbs, annual, 1.5–4.5 dm; with fibrous-roots. Stems solitary or few, erect, unbranched or branched, hairs spreading, short to long, ± stiff, mixed with short-stipitate-glandular ones. Leaves green, linear to narrowly lanceolate or narrowly oblong, 2–5.7 cm, not fleshy, margins plane, flat, 3–7 (–9) -lobed, apex acuminate to acute; lobes spreading to ascending, linear to narrowly oblong, apex acuminate. Inflorescences 2–14 × 1–4 cm; bracts greenish throughout, or proximally greenish, distally white, cream, pale-pink, or pale-purple on apices, linear-lanceolate, 5–7 (–9) -lobed, sometimes with secondary lobes; lobes ascending to spreading, linear to narrowly oblanceolate, long, arising all along leaf axis, apex acute to obtuse. Calyces colored as bracts, 15–25 mm; all 4 clefts subequal, 7–11 mm, 50–67% of calyx length; lobes linear, apices often slightly expanded, apex obtuse to acute. Corollas straight or slightly curved, 12–25 mm; tube 9–14 mm, expanded distally; abaxial lip sometimes slightly exserted, never hidden by slender calyx lobes, beak exserted; beak straight, adaxially white or lilac pink, 3–5.5 mm, inconspicuously puberulent; abaxial lip proximally white, distally yellow, with purple or redbrown spots, conspicuous, pouches 3, inflated, 4–6 mm, 4–5 mm wide, 2 mm deep, longer than deep, 1.5–4 mm, 90% as long as beak; teeth erect, white, usually with purple spot at base, 0.5–1 mm. Filaments glabrous. 2n = 20.


Phenology: Flowering Apr–Jun(–Jul).
Habitat: Grasslands, moist meadows, swales, shores, forest openings.
Elevation: 0–1600 m.

Discussion

Castilleja lineariloba is endemic to the western slope of the Sierra Nevada. Its chromosome number is 2n = 20, an apparent aneuploid reduction and documented by numerous counts. This diploid number is shared only with two very distantly related annual species endemic to central Mexico, C. gracilis Bentham and C. tenuifolia M. Martens & Galeotti.

Selected References

None.

Lower Taxa

None.

... more about "Castilleja lineariloba"
yellow +  and white +
conspicuous +  and hidden +
Obtuse (?) +  and Acute (?) +
expanded +
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
(Bentham) T. I. Chuang & Heckard +
Orthocarpus linearilobus +
straight +
puberulent +
0.3 cm3 mm <br />0.003 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
not +, leathery +  and fleshy +
pale-purple;pale-pink;pale-purple;pale-pink;cream;white;greenish;greenish +
5-7(-9)-lobed +  and linear-lanceolate +
2-lobed +, lobed +  and tubular +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
taprooted;fibrous-rooted or rhizomatous +
fleshy +  and woody +
subequal +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Thin-lobed owl’s clover +
purple +, pink +, red +, orange +, yellow +, white +, green +  and pale greenish +
curved +  and straight +
1.2 cm12 mm <br />0.012 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0–1600 m. +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Grasslands, moist meadows, swales, shores, forest openings. +
much-branched +, unbranched +  and eglandular +
stipitate-glandular +
short to long +
axillary +  and terminal +
spiral +, whorled +, alternate +  and opposite +
deciduous +
basal +  and cauline +
linear;narrowly lanceolate or narrowly oblong +
2 cm20 mm <br />0.02 m <br /> (5.7 cm57 mm <br />0.057 m <br />) +
not fleshy +
arising +, ascending +  and spreading +
3 +, 2 +  and 4 +
linear +  and narrowly oblanceolate +
subequal +
3-7(-9)-lobed +  and plane +
short-stipitate-glandular +
tenuinucellate +  and unitegmic +
campylotropous-like +
Flowering Apr–Jun(–Jul). +
longer than deep +
inflated +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
20 +  and 100 +
trapezoidal +, oblong-ovoid +, pyramidal +  and ovoid +
non-secund +  and secund +
elongate +
subequal +
branched +  and unbranched +
sprawling +  and prostrate +
aerial +  and subterranean +
not fleshy +
2-lobed +  and entire +
O. mariposanus +
Castilleja lineariloba +
Castilleja +
species +
purple spot +  and white +
shallow;deep +
reduced +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
expanded +
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +