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.
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.
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... more about "Roldana hartwegii"
introrse +
connate +
papillate +
rounded-truncate +
scarious +
hispidulous +
papillate +
continuous +
nerved +
suborbiculate;ovate or oblong +
winged;nerved;ribbed +
stigmatic +
barbellulate +
white +
persistent +
40;80 +
absent +
not 2-lipped +
monomorphic +
10-ribbed +
puberulent +
columnar +
staminate +
straight +
hirsute +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
indeterminate +
Present +
surrounding +
campanulate +
petiolate +
alternate +
cauline +
recurved +
scarious +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
tough +
thick +
absent +
connate +
persistent +
distinct +
herbaceous +
falling +
erect +
equal +
Phytologia +
1974 +
pistillate +
absent +
fertile +
epaleate +
alveolate +
conic;usually flat;convex +
fibrous +
exalbuminous +
modifed +
1;2 +
Illustrated +
alternate +
clustered +
erect +
single +
continuous +
purplish spots +
2-branched +
glabrous +
papillate +
Roldana hartwegii +
Roldana +
species +
glandular-puberulent +
perennial +
subshrub +