Solidago tortifolia |
Solidago subsect. Triplinerviae |
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twist-leaf goldenrod |
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Habit | Plants 30–130 cm; caudices small, woody, rhizomes creeping, elongate. | |
Stems | 1–10, ascending to erect, uniformly finely strigillose-villous distal to mid. |
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Leaves | basal cauline nearly always withering well before flowering, linear-oblanceolate, smaller than proximal mid cauline, serrate; proximal persisting, sometimes brown-black after senescence, often twisted; proximal to distal numerous (100+ on tall stems), crowded, sessile, blades (bright green) linear to linear-lanceolate, 20–70 × 2–7(–10) mm, margins remotely serrulate (proximal) to entire or with 1–2 minute serrations (distal), obscurely 3-nerved, one or both faces glabrous or finely strigillose. |
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Peduncles | 1–4 mm, finely strigilloso-villous; bracteoles 0–2, linear, grading into phyllaries. |
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Involucres | narrowly campanulate, 2.5–3.5 mm. |
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Ray florets | 2–8; laminae 1–2 × 0.25–0.5 mm. |
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Disc florets | 2–4(–6); corollas 2.3–3.5 mm, lobes 0.4–1 mm. |
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Phyllaries | in 3–4 series, strongly unequal; outer ovate, acute, inner oblong, obtuse to rounded. |
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Heads | 100–300+, in short to elongate, pyramidal paniculiform arrays, branches recurved, secund. |
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Cypselae | (narrowly obconic) 1 mm, strigillose; pappi 2–3 mm. |
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2n | = 18. |
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Solidago tortifolia |
Solidago subsect. Triplinerviae |
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Phenology | Flowering Aug–Nov (year-round). | |
Habitat | Dry, usually sandy soils, pinelands, embankments | |
Elevation | 0–100+ m (0–300+ ft) | |
Distribution |
AL; AR; FL; GA; LA; MS; NC; SC; TX; VA
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Source | FNA vol. 20, p. 158. | |
Parent taxa | Asteraceae > tribe Astereae > Solidago > sect. Solidago > subsect. Triplinerviae | |
Sibling taxa | ||
Name authority | Elliott: Sketch Bot. S. Carolina 2: 377. (1823) | |
Web links |