Difference between revisions of "Lorandersonia linifolia"

(Greene) Urbatsch, R. P. Roberts & Neubig

Sida 21: 1622. 2005.

Common names: Spearleaf rabbitbrush
Endemic
Basionym: Chrysothamnus linifolius Greene Pittonia 3: 24. 1896
Synonyms: Chrysothamnus viscidiflorus subsp. linifolius (Greene) H. M. Hall & Clements
Treatment appears in FNA Volume 20. Treatment on page 179. Mentioned on page 178.
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Latest revision as of 13:16, 7 March 2024

Shrubs, 70–350 cm (trunks to 20 cm diam.; soboliferous). Stems single, greenish when young, becoming tan to gray, fastigiately branched (± angled from leaf bases), glabrous or scabridulous. Leaves ascending; blades with midnerves plus 2 fainter collateral nerves evident, broadly linear to lanceolate or oblong, 20–75 × 3–8 mm, flat, margins scabrellous, apices acute to acuminate, faces glabrous, gland-dotted (in shallow pits). Heads in corymbiform arrays 3–12 cm wide. Involucres obconic, 4.5–7 × 1.5–2.2 mm. Phyllaries 15–18 in 3–4 series, in 5 vertical ranks, mostly tan, midnerves evident on distal 1/2, ± keeled, elliptic to lanceolate, 0.7–6.5 × 0.5–1.1 mm, unequal, outer often thickened and herbaceous subapically, apices acute, acuminate, or rounded, faces glabrous or sparsely scabrous. Receptacles with 0–2 scales, 0–0.5 mm. Ray florets 0. Disc florets (4–)5(–6); corollas 4–5.5 mm, glabrous, lobes 1–1.5 mm; style branches 1.9–2.3 mm, appendages subulate, 0.7–1.1 mm. Cypselae tan to brownish, subcylindric, 2.5–3.5 mm, 10–12-ribbed, densely hairy; pappi whitish tan, 4.5–7 mm. 2n = 18.


Phenology: Flowering summer–fall.
Habitat: Margins of alkaline streams, banks of larger rivers, other moist, low, alkaline sites, less often drier slopes
Elevation: 1200–2400 m

Distribution

V20-389-distribution-map.gif

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

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Lorandersonia linifolia"
Lowell E. Urbatsch +, Roland P. Roberts +  and Kurt M. Neubig +
(Greene) Urbatsch, R. P. Roberts & Neubig +
Chrysothamnus linifolius +
Spearleaf rabbitbrush +
Ariz. +, Colo. +, Mont. +, N.Mex. +, Utah +  and Wyo. +
1200–2400 m +
Margins of alkaline streams, banks of larger rivers, other moist, low, alkaline sites, less often drier slopes +
Flowering summer–fall. +
Chrysothamnus viscidiflorus subsp. linifolius +
Lorandersonia linifolia +
Lorandersonia +
species +