Eremogone capillaris

(Poiret) Fenzl

Vers. Darstell. Alsin., 37. 1833.

Common names: Slender mountain sandwort
Basionym: Arenaria capillaris Poiret in J. Lamarck et al., Encycl. 6: 380. 1804
Treatment appears in FNA Volume 5. Treatment on page 60. Mentioned on page 57, 58, 62.
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Plants cespitose to somewhat matted, green or often glaucous, with woody base. Stems erect to ascending, (3–) 5–20 (–25) cm, entirely glabrous or glabrous proximally, stipitate-glandular distally. Leaves: basal leaves abundant, persistent; cauline leaves in 1–3 pairs, abruptly reduced distal to lowest pair; basal blades erect, straight or often curved in one direction, filiform, (2–) 4–8 cm × 0.5–1 mm, flexuous, herbaceous, apex acute or acuminate to weakly spinose, glabrous, sometimes stipitate-glandular, often glaucous. Inflorescences 1–12 (–18) -flowered, open or rarely subcongested cymes. Pedicels (2–) 5–20 mm, glabrous or stipitate-glandular. Flowers: sepals often purplish, 1–3-veined, ovate to ovatelanceolate, 3–4.7 mm, to 5 mm in fruit, margins broad, apex broadly rounded to barely acute, glabrous or stipitate-glandular; petals white, spatulate, 6–10 mm, 1.5–2.5 times as long as sepals, apex broadly rounded; nectaries as depressed transverse cup at base of filaments opposite sepals, 0.3–0.7 × 0.1–0.3 mm. Capsules 5–8 mm, valves at least sparsely stipitate-glandular or glabrous. Seeds brown to black, ellipsoid to ovoid with hilar notch, (1.2–) 1.5–2 (–2.5) mm, tuberculate; tubercles rounded, elongate.

Distribution

V5 117-distribution-map.gif

Alta., B.C., N.W.T., Yukon, Alaska, Idaho, Mont., Nev., Oreg., Wash., Asia (Siberia)

Discussion

Varieties 2 (2 in the flora).

B. Maguire (1947, 1951) and subsequent workers separated these varieties of Eremogone capillaris by sepal length: (3–)3.5–4.5(–4.8) mm in var. americana and (3.6–)5–6(–6.6) mm in var. capillaris. Material available to us did not exhibit that distinction.

Selected References

None.

Key

1 Pedicels and sepals glabrous Eremogone capillaris var. capillaris
1 Pedicels and sepals stipitate-glandular Eremogone capillaris var. americana
... more about "Eremogone capillaris"
spinose +  and apiculate +
stipitate-glandular +, glabrous +  and glaucous +
rounded;broadly rounded;barely acute +
Ronald L. Hartman +, Richard K. Rabeler +  and Frederick H. Utech +
(Poiret) Fenzl +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
flexuous +, curved +  and straight +
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Arenaria capillaris +
filiform +  and subulate or narrowly linear +
not +  and succulent +
reduced +
ovoid;urceolate +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
distal +  and lowest +
Slender mountain sandwort +
depressed +
dish--shaped +
expanded +
Alta. +, B.C. +, N.W.T. +, Yukon +, Alaska +, Idaho +, Mont. +, Nev. +, Oreg. +, Wash. +  and Asia (Siberia) +
straight +  and curved +
central +  and peripheral +
inconspicuous +
unisexual +  and bisexual +
stalked +  and simple +
disc--shaped +  and dish +
subcongested +, open +  and 1-12(-18)-flowered +
connate +
0.3mm;0.7mm +
0.1mm;0.3mm +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
stipitate-glandular +  and glabrous +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
fugacious +
1.5-2.5 times as long as sepals +
spatulate +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Vers. Darstell. Alsin., +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
brown;black +
tuberculate +
ellipsoid +  and ovoid +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
persistent +
connate +  and distinct +
ovate;ovatelanceolate +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
branched +  and simple +
20 cm200 mm <br />0.2 m <br /> (25 cm250 mm <br />0.25 m <br />) +
erect;ascending +
stipitate-glandular +  and glabrous +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
[50 +  and 3 +
smooth +  and papillate +
distinct +
filiform +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
stout +  and slender +
Eremogone capillaris +
Eremogone +
species +
ascending;recurved +
divided +
elongate +  and rounded +
10 +  and 8 +
glabrous +  and stipitate-glandular +
rhizomatous +  and taprooted +
plant +, matted +  and cespitose to somewhat +