Eremogone eastwoodiae

(Rydberg) Ikonnikov

Novosti Syst. Vyssh. Rast. 10: 139. 1973.

Common names: Eastwood’s sandwort
Endemic
Basionym: Arenaria eastwoodiae Rydberg Bull. Torrey Bot. Club 31: 406. 1904
Synonyms: Arenaria fendleri var. eastwoodiae (Rydberg) S. L. Welsh
Treatment appears in FNA Volume 5. Treatment on page 63. Mentioned on page 57, 59.

Plants densely matted, green, not glaucous, with woody base. Stems erect, (8–) 10–25 cm, glabrous or stipitate-glandular. Leaves: basal leaves persistent; cauline leaves usually in 2–4 pairs, reduced distally; basal blades spreading to recurved, needlelike, 1–3 (–3.5) cm × 0.5–0.7 mm, flexuous to rigid, herbaceous, apex spinose, glabrous to puberulent, not glaucous. Inflorescences (1–) 3–17-flowered, ± open cymes. Pedicels 3–30 mm, glabrous or stipitate-glandular. Flowers: sepals green or purplish, 1–3-veined, lanceolate to ovatelanceolate, (3.5–) 4–6.5 mm, not enlarging in fruit, margins broad, apex narrowly acute to acuminate, glabrous or stipitate-glandular; petals yellowish white or sometimes brownish to reddish-pink, broadly oblongelliptic to oblanceolate, 4–6.5 mm, 0.9–1.1 times as long as sepals, apex rounded; nectaries narrowly longitudinally rectangular, apically cleft or emarginate, adjacent to filaments opposite sepals, 1–2 mm. Capsules 4–6 mm, glabrous. Seeds brown, ovoid to suborbicular with hilar notch, 1.2–1.7 mm, papillate, subechinate; tubercles conical.

Distribution

V5 130-distribution-map.gif

Ariz., Colo., N.Mex., Utah, Wyo.

Discussion

Varieties 2 (2 in the flora).

The Hopi Indians may use Eremogone eastwoodiae as an emetic (B. Maguire 1960).

The nectaries in Eremogone eastwoodiae are different from those of most other species of the genus in North America since they are a separate bilobed structure adjacent to, but not a direct enlargement of, the filament bases opposite the sepals.

Selected References

None.

Key

1 Stems and pedicels glabrous Eremogone eastwoodiae var. eastwoodiae
1 Stems and pedicels stipitate-glandular Eremogone eastwoodiae var. adenophora
... more about "Eremogone eastwoodiae"
stipitate-glandular +, glabrous +, not glaucous +  and puberulent +
rounded;narrowly acute;acuminate +
Ronald L. Hartman +, Richard K. Rabeler +  and Frederick H. Utech +
(Rydberg) Ikonnikov +
3 cm30 mm <br />0.03 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Arenaria eastwoodiae +
filiform +  and subulate or narrowly linear +
not +  and succulent +
reduced +
ovoid;urceolate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Eastwood’s sandwort +
dish--shaped +
expanded +
Ariz. +, Colo. +, N.Mex. +, Utah +  and Wyo. +
straight +  and curved +
central +  and peripheral +
inconspicuous +
unisexual +  and bisexual +
stalked +  and simple +
disc--shaped +  and dish +
(1-)3-17-flowered +
connate +
emarginate +  and cleft +
rectangular +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
stipitate-glandular +  and glabrous +
0.3 cm3 mm <br />0.003 m <br /> (3 cm30 mm <br />0.03 m <br />) +
brownish +  and reddish-pink +
fugacious +
0.9-1.1 times as long as sepals +
broadly oblongelliptic +  and oblanceolate +
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
Novosti Syst. Vyssh. Rast. +
subechinate +
papillate +
ovoid +  and suborbicular +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
purplish +  and green +
persistent +
connate +  and distinct +
lanceolate;ovatelanceolate +
not enlarging +
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
branched +  and simple +
8 cm80 mm <br />0.08 m <br /> (10 cm100 mm <br />0.1 m <br />) +
stipitate-glandular +  and glabrous +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 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 />) +
Arenaria fendleri var. eastwoodiae +
stout +  and slender +
Eremogone eastwoodiae +
Eremogone +
species +
ascending;recurved +
divided +
10 +  and 8 +
rhizomatous +  and taprooted +
plant +  and matted +