Difference between revisions of "Eriogonum exilifolium"
Great Basin Naturalist 27: 114, fig. 1. 1967.
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|common_names=Drop-leaf wild buckwheat | |common_names=Drop-leaf wild buckwheat | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
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| + | |code=C | ||
| + | |label=Conservation concern | ||
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name=Eriogonum exilifolium | name=Eriogonum exilifolium | ||
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|authority=Reveal | |authority=Reveal | ||
|rank=species | |rank=species | ||
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|publication title=Great Basin Naturalist | |publication title=Great Basin Naturalist | ||
|publication year=1967 | |publication year=1967 | ||
| − | |special status= | + | |special status=Endemic;Conservation concern |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_497.xml |
|subfamily=Polygonaceae subfam. Eriogonoideae | |subfamily=Polygonaceae subfam. Eriogonoideae | ||
|genus=Eriogonum | |genus=Eriogonum | ||
Latest revision as of 22:11, 5 November 2020
Herbs, matted, not scapose, 0.3–1 × 1–2 dm, glabrous, green. Stems spreading, usually with persistent leaf bases, up to 1/5 height of plant; caudex stems matted; aerial flowering stems mostly erect, slender, solid, not fistulose, 0.03–0.1 dm, glabrous or floccose or sparsely tomentose. Leaves basal, 1 per node but congested; petiole 0.5–1 cm, tomentose to floccose or glabrous; blade linear to linear-oblanceolate, (2–)3–6 × 0.1–0.3 cm, densely white-tomentose abaxially, less so or glabrous and green adaxially, margins revolute. Inflorescences cymose-umbellate, 1.5–3 × 1.5–3 cm; branches dichotomous, glabrous; bracts 3, semileaflike, usually triangular, 3–5 mm. Peduncles stout, 0.1–0.4 cm, glabrous. Involucres 1 per node, turbinate-campanulate, 2.5–3.5(–4.5) × 2–3 mm, glabrous except for cottony tomentum between teeth; teeth 5, erect, 0.3–0.5 mm. Flowers 2–3.5 mm; perianth white, glabrous; tepals connate proximal 1/4–1/3, monomorphic, oblanceolate to elliptic; stamens exserted, 3–4 mm; filaments sparsely pilose proximally. Achenes brown, 2.5–3.5 mm, glabrous.
Phenology: Flowering Jun–Sep.
Habitat: Clay hills and flats or granitic sandy slopes, mixed grassland and sagebrush communities
Elevation: 2200-2600 m
Discussion
Eriogonum exilifolium is known only from Grand, Jackson, and Larimer counties, Colorado, and from Carbon and Albany counties, Wyoming. The drop-leaf wild buckwheat is a “species of concern” in Wyoming.
Selected References
None.