Difference between revisions of "Solidago leavenworthii"

Torrey & A. Gray

Fl. N. Amer. 2: 223. 1842.

Common names: Leavenworth’s goldenrod
Endemic
Synonyms: Aster leavenworthii (Torrey & A. Gray) Kuntze
Treatment appears in FNA Volume 20. Treatment on page 157. Mentioned on page 110, 151, 158.
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|tribe=Asteraceae tribe Astereae
 
|tribe=Asteraceae tribe Astereae
 
|genus=Solidago
 
|genus=Solidago

Latest revision as of 20:02, 5 November 2020

Plants (50–)100–200 cm (solitary or clustered); rhizomes creeping, elongate. Stems 1–10+, erect, scabroso-puberulent proximal to arrays distally, in strips proximal to leaves. Leaves: basal 0; mid and distal cauline sometimes numerous (75+), somewhat crowded, sessile, blades (dark green) linear-lanceolate to lanceolate, 25–150 × 2–15 mm, margins serrate to entire, scabroso-ciliate, 3-nerved, faces glabrous or with short hairs in lines along nerves. Heads 50–350, in secund, usually elongate, pyramidal paniculiform arrays, branches recurved and secund. Peduncles 1–5 mm, sparsely to moderately strigillose; bracteoles 1–3, linear-lanceolate. Involucres narrowly campanulate, 3–5 mm. Phyllaries in 3–4 series, strongly unequal (greenish), outer lanceolate, inner oblong-lanceolate, margins ciliate-fimbriate apically, midnerves swollen apically, apices obtuse to rounded, glabrous. Ray florets 10–15; laminae 2–3 × 0.1–0.6 mm. Disc florets 6–10; corollas 3–4 mm, lobes 0.6–1.1 mm. Cypselae (narrowly obconic) 1.1–1.5 mm (ribbed), sparsely strigillose; pappi 2.5–3 mm. 2n = 18, 36, 54.


Phenology: Flowering Nov–Dec.
Habitat: Wet soils, thickets, edges of bogs, coastal plain
Elevation: 10–40 m

Distribution

V20-341-distribution-map.gif

Ala., Fla., Ga., N.C., S.C.

Discussion

Solidago leavenworthii replaces S. gigantea on the southern, outer Atlantic coastal plain and into Florida. The leaves of S. leavenworthii usually have fewer, smaller serrations than those of S. gigantea, and they have a distinctive dark, somewhat olive green color. The pyramidal array of S. leavenworthii is usually much narrower and elongate while that of S. gigantea is usually broad and not elongate.

Selected References

None.

Lower Taxa

None.
... more about "Solidago leavenworthii"
John C. Semple +  and Rachel E. Cook +
Torrey & A. Gray +
Triplinerviae +
Leavenworth’s goldenrod +
Ala. +, Fla. +, Ga. +, N.C. +  and S.C. +
10–40 m +
Wet soils, thickets, edges of bogs, coastal plain +
Flowering Nov–Dec. +
Fl. N. Amer. +
Aster leavenworthii +
Solidago leavenworthii +
Solidago subsect. Triplinerviae +
species +