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False Dogfennel

Dysodiopsis tagetoides (Torr. & A. Gray) Rydb.

Description

provided by eFloras
Leaf blades 40–90 × 2–6 mm. Peduncles 30–50 mm. Ray laminae linear-elliptic, 10–15 × 3–6 mm. Disc corollas ca. 4 mm. Cypselae 3–3.5 mm; pappi: scales 1–2.5 mm. 2n = 26.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 237, 238 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Synonym

provided by eFloras
Dyssodia tagetoides Torrey & A. Gray, Fl. N. Amer. 2: 361. 1842
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 237, 238 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Comprehensive Description

provided by North American Flora
Dysodiopsis tagetoides (T. & G.) Rydberg
Dyssodia tagetoides T. & G. Fl. N. Am. 2: 361. 1842. Hymenaihtrum tagetoides A. Gray, Mem. Am. Acad. IT. 4: 88. 1849. Thymophylla tagetoides Small, Fl'. SK. U. S. 1295. 1903.
A perennial, but evidently blooming the first year; stems single or several from the
3-4 dm. high, glabrous or minutely puberulent; leaves 4-7 cm. long, narrowly linear, laciniately
and spinulosely dentate with ascending teeth, the lower teeth bristle-like; heads corymbose;
peduncles 1-3 cm. long, somewhat bracteate; involucre 6-7 mm. high, 5-17 mm. broad;
principal bracts each with 2-8 conspicuous glands or the inner glandless, the free tips deltoid;
ligules 6 mm. long, 3 mm. wide, yellow; disk-corollas 4.5-5 mm. long; achenes 4 mm. long;
squamellae 1-2 mm. long.
Type locality: Texas. Distribution: Texas and Arkansas.
license
cc-by-nc-sa-3.0
bibliographic citation
Per Axel Rydberg. 1915. (CARDUALES); CARDUACEAE; HELENIEAE, TAGETEAE. North American flora. vol 34(2). New York Botanical Garden, New York, NY
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North American Flora