Difference between revisions of "Roldana hartwegii"
Phytologia 27: 420. 1974.
Illustrated
Basionym: Senecio hartwegii Bentham Pl. Hartw., 18. 1839 (as hartwegi)
Treatment appears in FNA Volume 20. Treatment on page 621.
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|tribe=Asteraceae tribe Senecioneae | |tribe=Asteraceae tribe Senecioneae | ||
|genus=Roldana | |genus=Roldana | ||
Revision as of 21:45, 27 May 2020
Stems often marked with purplish spots or striae. Leaves: petioles mostly 3–7 cm; blades (ultimate venation raised and finely reticulate) mostly 10–20 × 10–20 cm (smaller distally), bases cordate to truncate, faces sometimes initially sparsely hirsute (only bases of hairs remaining at flowering). Phyllaries mostly 4–6 mm. Ray corolla laminae mostly 3–4 × 1.5–2 mm. Disc corollas 6–8 mm, tubes usually glandular-puberulent. Cypselae (1–)2.5 mm; pappi 4–6 mm. 2n = 60.
Phenology: Flowering late summer–fall.
Habitat: Pine-oak forests, waste places, roadsides
Elevation: 1200–1800 m
Distribution
Ariz., N.Mex., Mexico.
Discussion
Selected References
None.
Lower Taxa
None.