Flora of North America species comparison

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Eremogone hookeri

Hooker's sandwort
Habit Plants densely or loosely matted, green, not glaucous, somewhat woody at base.
Stems

erect, 1–15(–20) cm, scabrid-puberulent.
Leaves

basal leaves persistent;

cauline leaves in 1–4 pairs, usually little overlapping, often larger than basal leaves;

basal blades straight to arcuate-spreading, subulate to needlelike, 0.3–4 cm × 0.5–1.5 mm, flexible or rigid, herbaceous, apex spinose, glabrous, often glaucous.
Inflorescences

3–30+-flowered, congested, capitate or subcapitate cymes.
Pedicels

0.2–2 mm, scabrid-puberulent.
Flowers

sepals 1–3-veined, often obscurely so, linear-lanceolate to lanceolate, (5–)6–10 mm, not enlarging in fruit, margins narrow, apex narrowly acute or acuminate, glabrous or pubescent;

petals white, oblanceolate, 4.5–8.5 mm, ± equaling sepals, apex rounded to obtuse;

nectaries as lateral and abaxial mounds with transverse groove at base of filaments opposite sepals, 0.2–0.3 mm.
Capsules

to 4 mm, glabrous.
Seeds

black, ellipsoid-oblong to pyriform with hilar notch, 1.8–2 mm, tuberculate;

tubercles rounded, elongate.

Eremogone hookeri
Distribution
from FNA
CO; KS; MT; NE; NM; NV; OK; SD; UT; WY
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Basal leaf blades 0.3-1.5 cm, straight or recurved, rigid; sepals 5-8(-9) mm
var. hookeri
1. Basal leaf blades 2-4 cm, straight, rigid or flexible; sepals (7-)8-10 mm
var. pinetorum
Source FNA vol. 5, p. 66.
Parent taxa Caryophyllaceae > subfam. Alsinoideae > Eremogone
Sibling taxa
E. aberrans, E. aculeata, E. capillaris, E. congesta, E. eastwoodiae, E. fendleri, E. ferrisiae, E. franklinii, E. kingii, E. macradenia, E. pumicola, E. stenomeres, E. ursina
Subordinate taxa
E. hookeri var. hookeri, E. hookeri var. pinetorum
Synonyms Arenaria hookeri
Name authority (Nuttall) W. A. Weber: Brittonia 33: 326. (1981)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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