Solidago buckleyi |
Solidago ohioensis |
|
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Buckley's goldenrod |
Ohio goldenrod |
|
Habit | Plants 60–120 cm; caudices thick, woody, roots thick. | Plants 40–100 cm; caudices densely rooting, branching; vascular bundles and petiole bases marcescent (attached to old stems for more than a season). |
Stems | 1–5+, sparsely to moderately short strigose or villous. |
1–10+, erect, slender to stout (tall shoots), glabrous. |
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 often persistent, also present as new rosettes at flowering, tapering to winged petioles to 250 mm, blades narrowly ovate to lanceolate, 50–150 × 15–45 mm, apices obtuse to acute, faces glabrous; proximal cauline similar, reduced distally (petioles becoming less developed); distal sessile, blades prominently 1-nerved, ovate to lanceolate, 75–100 × 8–12 mm, much reduced distally, margins entire, flat, apices acute. |
Peduncles | 1–6 mm, moderately canescent; bracteoles linear to lanceolate. |
6.3–8.5 mm, glabrous; bracteoles 3, linear to lanceolate, sometimes grading into phyllaries. |
Involucres | campanulate, 4.5–5.5 mm. |
campanulate, 4–5 mm. |
Ray florets | 6–8; laminae 3–4 × 1–1.5 mm wide. |
6–8; laminae 4.6–5 × 0.5–0.7 mm. |
Disc florets | 8–14; corollas 4–5 mm, lobes ca. 1.5 mm. |
8–20; corollas 4–4.5 mm, lobes 0.6–1 mm. |
Phyllaries | in ca. 3 series, strongly unequal, erect to slightly squarrose-tipped, lanceolate, apices acute, glabrate, sparsely to moderately, finely stipitate-glandular. |
(14–18) in 3–4 series, broadly linear to ovate, unequal, obtuse, obscurely striate. |
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. |
10–500+ in corymbiform arrays, branches glabrous. |
Cypselae | (reddish brown) 2–3 mm, glabrous; pappi 4–5 mm. |
(obconic) 1.6–2.2 mm, glabrous; pappi 2.5–3 mm (apically clavate). |
2n | = 18. |
|
Solidago buckleyi |
Solidago ohioensis |
|
Phenology | Flowering Sep. | Flowering Sep–Oct. |
Habitat | Open oak woods, ridges and slopes, bluffs | Marshes, wet sand dunes, along rivers |
Elevation | 100–300 m (300–1000 ft) | 100–300 m (300–1000 ft) |
Distribution |
AR; IL; IN; KY; MO
|
IL; IN; MI; NY; WI; ON
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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.) |
Solidago ohioensis is most likely to be confused with S. riddellii, which has folded and multinerved leaves, and S. houghtonii, which has arrays with few large heads. Solidago ohioensis is found in the southwestern Great Lakes area and the flatlands region to the southwest. Hybrids between S. ohioensis and S. ptarmicoides occasionally occur where the two parents are sympatric. Those hybrids were described as S. ×krotkovii B. Boivin [Oligoneuron ×krotkovii (B. Boivin) G. L. Nesom] and can be similar to S. houghtonii. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 118. | FNA vol. 20, p. 165. |
Parent taxa | Asteraceae > tribe Astereae > Solidago > sect. Solidago > subsect. Thyrsiflorae | Asteraceae > tribe Astereae > Solidago > sect. Ptarmicoidei |
Sibling taxa | ||
Synonyms | Aster buckleyi | Aster ohioensis, Oligoneuron ohioense |
Name authority | Torrey & A. Gray: Fl. N. Amer. 2: 198. (1842) | Riddell: W. J. Med. Phys. Sci. 8: 499. (1835) |
Web links |