Eremogone fendleri |
Eremogone capillaris |
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Fendler's sandwort |
fescue sandwort, mountain sandwort, slender mountain sandwort, thread-leaf sandwort |
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Habit | Plants ± cespitose, bluish green, not glaucous, with woody base. | Plants cespitose to somewhat matted, green or often glaucous, with woody base. | ||||
Stems | erect, (2–)10–30(–40) cm, stipitate-glandular. |
erect to ascending, (3–)5–20(–25) cm, entirely glabrous or glabrous proximally, stipitate-glandular distally. |
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Leaves | basal leaves persistent; cauline leaves in (4–)5+ pairs, reduced or not; basal blades ascending or recurved, filiform, 1–10(–11) cm × 0.2–0.4 mm, flexuous, herbaceous, apex apiculate to spinose, glabrous to puberulent, not glaucous. |
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. |
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Inflorescences | (1–)3–35-flowered, ± open cymes. |
1–12(–18)-flowered, open or rarely subcongested cymes. |
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Pedicels | 3–25 mm, stipitate-glandular. |
(2–)5–20 mm, glabrous or stipitate-glandular. |
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Flowers | sepals weakly to prominently 1–3-veined, linear-lanceolate, 4–7.5 mm, not enlarging in fruit, margins broad, apex acuminate, moderately to densely stipitate-glandular on herbaceous portion; petals white, oblong-elliptic to spatulate, 4–8 mm, 0.9–1.3 times as long as sepals, apex entire to somewhat erose; nectaries as lateral and abaxial rounding of base of filaments opposite sepals, 0.2 × 0.4 mm. |
sepals often purplish, 1–3-veined, ovate to ovate-lanceolate, 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. |
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Capsules | 5–7 mm, glabrous. |
5–8 mm, valves at least sparsely stipitate-glandular or glabrous. |
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Seeds | black, ovoid to pyriform with hilar notch, 1.5–1.9 mm, tuberculate; tubercles rounded, elongate to rounded-conic. |
brown to black, ellipsoid to ovoid with hilar notch, (1.2–)1.5–2(–2.5) mm, tuberculate; tubercles rounded, elongate. |
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2n | = 44. |
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Eremogone fendleri |
Eremogone capillaris |
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Phenology | Flowering spring–late summer. | |||||
Habitat | Sagebrush plains, pine forests, and mountain slopes to alpine zones | |||||
Elevation | 1200-4300 m (3900-14100 ft) | |||||
Distribution |
AZ; CO; NM; TX; UT; WY
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AK; ID; MT; NV; OR; WA; AB; BC; NT; YT; Asia (Siberia)
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Discussion | We agree with M. F. Baad (1969) in not formally recognizing varieties within Eremogone fendleri. B. Maguire (1947, 1951) recognized five varieties, defined chiefly on leaf and sepal characteristics. While some specimens can be “matched” to varieties, many appear intermediate between them, forming a continuum of variation. B. Maguire (1947) noted that Eremogone fendleri is “probably to be found in the states of Sonora and Chihuahua, Mexico”; we have not seen any collections from that area. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 5, p. 64. | FNA vol. 5, p. 60. | ||||
Parent taxa | Caryophyllaceae > subfam. Alsinoideae > Eremogone | Caryophyllaceae > subfam. Alsinoideae > Eremogone | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Arenaria fendleri, Arenaria fendleri subsp. brevifolia, Arenaria fendleri var. brevifolia, Arenaria fendleri var. diffusa, Arenaria fendleri var. porteri, Arenaria fendleri var. tweedyi, Arenaria tweedyi | Arenaria capillaris | ||||
Name authority | (A. Gray) Ikonnikov: Novosti Syst. Vyssh. Rast. 10: 139. (1973) | (Poiret) Fenzl: Vers. Darstell. Alsin., 37. (1833) | ||||
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