Flora of North America species comparison

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Solidago rigida subsp. glabrata
Photo is of parent taxon
Stems

40–95 cm.
Leaves and stems

glabrous or hispid (stems 0–25 hairs/mm2; leaves 0–20 hairs/mm2).
Leaves

basal to 250 × 40 mm;

mid to distal lanceolate to ovate, sometimes rhombic, thin.
Peduncles

sparsely to moderately hispid.
Disc corolla

lobes 1–1.6 mm.
Phyllaries

outer glabrous;

inner linear oblanceolate, 0.8–1.4 mm wide, glabrous.
Heads

usually compact, flat-topped arrays (2–)4–14(–24) × 5–15(–24.5) cm.
Cypselae

glabrous.
2n

= 18.

Solidago rigida subsp. glabrata
Phenology Flowering Sept–Oct(–Nov).
Habitat Prairies, glades, savannas, dry open areas, especially on calcareous soils
Elevation 0–300 m (0–1000 ft)
Distribution
from FNA
AL; AR; GA; KY; LA; MO; MS; NC; OH; SC; TN; TX
[BONAP county map]
Discussion

Apart from the differences stated above, subsp. glabrata is quite similar to subsp. rigida. Oligoneuron corymbosum Small is illegitimate.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 164.
Parent taxa Asteraceae > tribe Astereae > Solidago > sect. Ptarmicoidei > Solidago rigida
Sibling taxa
S. rigida subsp. humilis, S. rigida subsp. rigida
Synonyms S. rigida var. glabrata, Aster jacksonii, Leioligo corymbosa, Oligoneuron jacksonii, Oligoneuron rigidum var. glabrata, S. corymbosa, S. jacksonii, S. rigida var. laevicaulis
Name authority (E. L. Braun) S. B. Heard & Semple: Canad. J. Bot. 66: 1807. (1988)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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