Difference between revisions of "Xylorhiza confertifolia"
Brittonia 29: 207. 1977.
Common names: Henrieville woody-aster
Basionym: Machaeranthera glabriuscula var. confertifolia Cronquist Leafl. W. Bot. 10: 11. 1963
Synonyms: Machaeranthera confertifolia (Cronquist) Cronquist
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|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Xylorhiza | |genus=Xylorhiza | ||
Revision as of 20:31, 16 December 2019
Subshrubs 10–15(–23) cm. Stems branched mostly in proximal 3/4 (leaves numerous, crowded, internodes averaging 2–3 mm), finely stipitate-glandular or nearly glabrous. Leaf blades linear, 1–2.5 mm wide, bases attenuate, not clasping, margins involute, entire, faces puberulent and/or minutely stipitate-glandular. Peduncles 2–14 cm. Involucres 8–12 × 10–16(–20) mm. Ray florets 4–14; corollas white. Style-branch appendages ± equal stigmatic lines. 2n = 12.
Phenology: Flowering May–Jul.
Habitat: Barren slopes in alkaline clay, pinyon-juniper
Elevation: 1400–2300 m
Discussion
Of conservation concern.
Xylorhiza confertifolia is known form Garfield and Kane counties.
Selected References
None.
Lower Taxa
None.