Solidago buckleyi |
Solidago shortii |
|
---|---|---|
Buckley's goldenrod |
Short's goldenrod |
|
Habit | Plants 60–120 cm; caudices thick, woody, roots thick. | Plants 60–130 cm; rhizomes short, stout. |
Stems | 1–5+, sparsely to moderately short strigose or villous. |
1–10+, ascending to erect, scabroso-puberulent at least in distal 1/2. |
Leaves | basal withering by flowering, petiolate, smaller to much smaller than cauline, blades oblanceolate, margins serrate; cauline sessile, blades elliptic-lanceolate or -oblanceolate, mid 80–140 × 2.5–4 mm, distally reduced, usually membranous, bases tapering, attenuate, margins sharply toothed along much of length to nearly entire, ciliate, abaxial faces short-pilose along small and large nerves, adaxial short-pilose along larger nerves. |
basal withering by flowering; mid and distal cauline numerous; subsessile or obscurely petiolate; blades narrowly elliptic to lanceolate, 7–10 × 10–15 mm, firm, attenuate, margins distally serrate, eciliate, 3-nerved, apices acuminate or sharply acute, faces glabrous. |
Peduncles | 1–6 mm, moderately canescent; bracteoles linear to lanceolate. |
0.5–3 mm, sparsely strigose; bracteoles linear, minute. |
Involucres | campanulate, 4.5–5.5 mm. |
narrowly campanulate, 4–5 mm. |
Ray florets | 6–8; laminae 3–4 × 1–1.5 mm wide. |
5–8; laminae 2–3 × 0.75 mm. |
Disc florets | 8–14; corollas 4–5 mm, lobes ca. 1.5 mm. |
5–9; corollas 3–3.5 mm, lobes 0.5 mm. |
Phyllaries | in ca. 3 series, strongly unequal, erect to slightly squarrose-tipped, lanceolate, apices acute, glabrate, sparsely to moderately, finely stipitate-glandular. |
in 3–4 series, lanceolate to linear lanceolate, unequal, apices obtuse, innermost acute. |
Heads | 5–160 (2–10+ more per short branch cluster), in narrowly elongate paniculiform arrays, branches usually 1–6 cm (much longer in damaged plants, sometimes 1–3 proximal branches much elongated in undamaged plants), ascending and bearing short terminal racemiform or paniculiform clusters. |
50–150, in paniculiform arrays, branches recurved, secund. |
Cypselae | (reddish brown) 2–3 mm, glabrous; pappi 4–5 mm. |
ca. 2 mm, moderately short-strigose; pappi 2–3 mm. |
2n | = 36. |
|
Solidago buckleyi |
Solidago shortii |
|
Phenology | Flowering Sep. | Flowering Aug–Oct. |
Habitat | Open oak woods, ridges and slopes, bluffs | Dry, open places |
Elevation | 100–300 m (300–1000 ft) | 100–200 m (300–700 ft) |
Distribution |
AR; IL; IN; KY; MO
|
IN; KY |
Discussion | Solidago buckleyi is an uncommon species of mesic woods, most variable in the size and number of teeth on the large mid cauline leaves. Once seen, usually it is not easily confused with S. petiolaris. Reports from farther east are for plants of S. petiolaris. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Solidago shortii is found in Fleming, Nicolas, and Robertson counties, Kentucky, and Harrison County, Indiana. It was found historically on rock islands in the falls of the Ohio River near Louisville. Solidago shortii is listed as endangered by the U.S. Fish and Wildlife Service and is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 118. | FNA vol. 20, p. 158. |
Parent taxa | Asteraceae > tribe Astereae > Solidago > sect. Solidago > subsect. Thyrsiflorae | Asteraceae > tribe Astereae > Solidago > sect. Solidago > subsect. Triplinerviae |
Sibling taxa | ||
Synonyms | Aster buckleyi | Aster rafinesquii |
Name authority | Torrey & A. Gray: Fl. N. Amer. 2: 198. (1842) | Torrey & A. Gray: Fl. N. Amer. 2: 222. (1842) |
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