Chionophila tweedyi

(Canby & Rose) L. F. Henderson

Bull. Torrey Bot. Club 27: 352. 1900.

Common names: Tweedy's snowlover
Endemic
Synonyms: Penstemon tweedyi Canby & Rose Pentstemonopsis tweedyi (Canby & Rose) Rydberg
Treatment appears in FNA Volume 17. Treatment on page 62. Mentioned on page 61.

Stems 1–4, (5–) 10–18 (–25) cm, glabrous or sparsely glandular-pubescent. Leaves: basal and proximal cauline, blade oblanceolate, (8–) 25–90 × (1–) 3–13 mm, surfaces glabrous; cauline 1–4 pairs, blade narrowly lanceolate to linear, 2–22 × 1–3 mm. Racemes 1–7 cm, verticillasters 4–10, interrupted, glandular-pubescent; bracts lanceolate, proximal ones 3–9 × 1–3 mm. Pedicels 0–7 mm, glandular-pubescent. Flowers: caly× tube 1–2 mm, glandular-pubescent, lobes triangular to narrowly ovate, 2.5–3 × 1.4–2 mm; corolla pale lavender, 9–14 mm, glabrous externally, palate and proximal parts of abaxial limb glandular-pubescent, hairs to 0.1 mm, tube 1–2 mm, pollen-sacs 0.3–0.4 mm, explanate; staminode 4–5 mm; style 6–7 mm. Capsules 6.5–9 × 4–5 mm. Seeds brown, elliptic-disciform, 2.4–3 mm.


Phenology: Flowering Jun–Aug.
Habitat: Talus slopes, meadows, usually near timber lines.
Elevation: 2100–3200 m.

Discussion

Chionophila tweedyi is known from central Idaho and southwestern Montana.

Selected References

None.

Lower Taxa

None.
... more about "Chionophila tweedyi"
Craig C. Freeman +
(Canby & Rose) L. F. Henderson +
alternate +, opposite +, whorled +, helical +  and subopposite +
0.8 cm8 mm <br />0.008 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
narrowly lanceolate;linear +
not +, leathery +  and not fleshy +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
lanceolate +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Tweedy's snowlover +
pale lavender +
tubular-funnelform +
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Idaho +  and Mont. +
drupe-like +
2100–3200 m. +
curved +  and straight +
glandular-pubescent +
1 +  and 4 +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Talus slopes, meadows, usually near timber lines. +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
terminal +  and axillary +
alternate +  and opposite +
persistent +  and deciduous +
cauline +, proximal +  and basal +
smaller +
triangular;narrowly ovate +
entire +  and subentire toothed or lobed +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
glandular-pubescent +
glandular-pubescent +
0 cm0 mm <br />0 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
5 +  and 4 +
Flowering Jun–Aug. +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
glandular-pubescent +
Bull. Torrey Bot. Club +
1 cm10 mm <br />0.01 m <br /> (7 cm70 mm <br />0.07 m <br />) +
minute +
elliptic-disciform +
ellipsoid +  and fusiform or ellipsoid-disciform +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
cylindric +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 0.5 cm5 mm <br />0.005 m <br /> (?) +
18 cm180 mm <br />0.18 m <br /> (25 cm250 mm <br />0.25 m <br />) +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
glandular-pubescent +  and glabrous +
10 cm100 mm <br />0.1 m <br /> (18 cm180 mm <br />0.18 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Penstemon tweedyi +  and Pentstemonopsis tweedyi +
Chionophila tweedyi +
Chionophila +
species +
gibbous +  and not spurred +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
glandular-pubescent +