Symphyotrichum falcatum (Lindley) G. L. Nesom (Q2511)
Symphyotrichum falcatum is a taxon with the rank species within the subgenus Symphyotrichum subg. Virgulus
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Symphyotrichum falcatum (Lindley) G. L. Nesom
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Symphyotrichum falcatum is a taxon with the rank species within the subgenus Symphyotrichum subg. Virgulus
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Statements
taxon/id/Symphyotrichum falcatum (Lindley) G.L. Nesom
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Symphyotrichum falcatum (Lindley) G.L. Nesom
Symphyotrichum falcatum
(Lindley) G.L. Nesom
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 20: Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford University Press, New York.
accepted
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CA-AB
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CA-BC
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CA-MB
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CA-NT
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CA-ON
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CA-SK
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CA-YT
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US-AK
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US-AZ
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US-CO
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US-ID
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US-IL
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US-IA
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US-KS
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US-MN
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US-MO
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US-MT
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US-ND
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US-NM
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US-NE
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US-OK
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US-SD
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US-TX
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US-UT
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US-WI
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US-WY
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with branched rhizomes or with ± cormoid, branched, woody caudices.
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Stems 1–5+, ascending to erect (grayish brown to brown), moderately to densely hairy.
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Leaves (light grayish green) firm, margins entire, strigose, apices ± spine-tipped;
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basal withering by flowering, sessile, blades oblanceolate, 10–40 × 3–10 mm, bases attenuate, margins usually entire, rarely remotely serrate, scabrous, apices acute to obtuse, rounded to mucronulate-spinose, faces glabrate to moderately strigose;
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proximal cauline sessile, blades linear-oblanceolate to oblong, 10–40 (–60) × 1.5–4 (–7) mm, reduced distally, bases cuneate, margins entire, coarsely ciliate, apices acute or obtuse, faces sparsely to densely appressed hispido-strigose;
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distal sessile, blades linear-oblong to linear-lanceolate, 25–45 × 2–3 mm, bases cuneate, margins entire, apices acute, faces moderately to densely strigose.
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Heads [(1–) 10–200+] in racemiform to diffuse-paniculiform arrays (1–10+ per branch, usually not crowded).
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Peduncles 0.2–4 cm, densely hairy, bracts 1–3+, linear to lanceolate, densely hairy.
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Involucres campanulate, (4.5–) 5–8 mm.
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Phyllaries in 3–4 series, outer oblanceolate to spatulate (1.5–2 mm), inner linear-lanceolate (3–4 mm), unequal, bases (whitish to tan) ± indurate in basal 1/2–3/4, margins hyaline, scabrous proximally, green zones diamond-shaped, in distal 1/4–1/2, apices (outer) acute to obtuse, clear spine-tipped, spreading to reflexed, (inner) acuminate to attenuate, faces sparsely to moderately hispid-strigose.
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Ray-florets (15–) 20–35;
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corollas usually white, sometimes blue or pink, laminae (8–) 18–30 × 1.1–1.4 mm.
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Disc-florets (8–) 18–30;
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corollas yellow becoming brown, 2–2.5 mm, lobes triangular, 0.7–1.2 mm, glabrous.
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Cypselae dark-brown, obovoid, not compressed, 2–2.5 mm, faint-nerved, faces densely strigose;
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pappi whitish, 4.5–6 mm.
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linear-oblong
linear-lanceolate
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strigose
moderately to densely
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hispid-strigose
sparsely to moderately
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