Difference between revisions of "Solidago ouachitensis"
Sida 11: 334, fig. 1. 1986.
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|common_names=Ouachita Mountains goldenrod | |common_names=Ouachita Mountains goldenrod | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=C | ||
| + | |label=Conservation concern | ||
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|publication year=1986 | |publication year=1986 | ||
| − | |special status= | + | |special status=Endemic;Conservation concern |
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|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Solidago | |genus=Solidago | ||
Latest revision as of 20:01, 5 November 2020
Plants 60–110 cm; caudices woody. Stems 1–3+, erect, straight, glabrous proximally to sparsely hairy in arrays. Leaves: basal withering by flowering; proximal cauline sessile, blades elliptic, 100–130 × 35–45 mm, margins sharply serrate (with 20–31 teeth), abaxial faces glabrous, adaxial glabrous or sparsely hairy; distal cauline sessile, blades narrowly elliptic, 65–80 × 13–24 mm, bases cuneate, margins entire to slightly serrate, apices acuminate, faces glabrous. Heads 25–50, in non-secund, short, axillary and terminal racemiform/paniculiform arrays 13–25 cm. Peduncles 0.5–3 mm, sparsely hispido-strigose; bracteoles ovate, 1–3 near each head, grading into phyllaries. Involucres narrowly campanulate, (6.5–)7–8 mm. Phyllaries in ca. 3–4 series, unequal, 1-nerved, obtuse; outermost linear-oblong, 0.8–1.3 mm. Ray florets 1; laminae 2.4–4.7 × ca. 1 mm. Disc florets 4–5; corollas 1.8–2.8 mm, lobes 0.8–1.6 mm. Cypselae 1.5–2.7 mm, glabrous; pappi 3–3.5 mm. 2n = 18.
Phenology: Flowering Sep–Oct.
Habitat: Woods of north facing slopes
Elevation: 500–700 m
Discussion
Of conservation concern.
Historically Solidago ouachitensis has been included in S. caesia or S. curtisii; it is ecologically and morphologically distinct.
Solidago ouachitensis is known only from the mesic, north-facing slopes of the Ouachita Mountains along the border of Arkansas and Oklahoma. It is a very infrequent species deserving protection and is in the Center for Plant Conservation’s National Collection of Endangered Plants.
Selected References
None.