Palafoxia linearis (Cav.) Lag.

Palafoxia linearis Lag. Gen. & Sp. Nov. 26. 1816
Ageratum lineare Cav. Ic. 3: 3. 1795.
Paleolaria carnea Cass. Bull. Soc. Philom. 1818: 47. 1818.
Slevia linearis Willd. Sp. PI. 3: 1774. 1804.
Slevia lavandulaefolia Willd.; DC. Prodr. 5: 125, as synonym. 1836.
A branched annual or perhaps perennial; stem 3-5 dm. high, hispid and glandular especially above; leaves very narrowly lance-linear, attenuate, 5-10 cm. long, 2-6 mm. wide, canescent, strigose-hirsute or hispid; peduncles densely glandular; involucre narrowly turbinate-campanulate, 12-15 mm. high, 7-12 mm. broad; bracts linear, densely hispid and glandular; flowers 10-30; tube of the corollas 3-5 mm. long; throat 3 mm. long; lobes oblonglinear, 1.5 mm. long; achenes 10-12 mm. long, 1 mm. thick, pubescent; squamellae 4, usually 6-7 mm. long, with strong excurrent midrib and scarious margins or those of the marginal achenes much smaller, not scarious and sometimes minute.
Type locality: Mexico.
Distribution: Nevada, southern Utah (?), and southern Cilifornia, to Lower California and Coahuila.

Palafoxia leucophylla A. Gray, Proc. Am. Acad. 8: 291. 1S70
Palafoxia arenaria Brand. Proc. Calif. Acad. II. 2: 178. 1889.
A decumbent perennial, more or less woody; stem 3-10 dm. long; branches divaricate,
hispid and glandular; leaves densely strigose-canesccnt, linear, 1-3 cm. long, 3-6 mm. wide,
obtuse; involucre narrowly turbinate-campanulate, 10-12 mm. long; bracts linear, densely
hispid and glandular; corollas about 15, flesh-colored; tube 3 mm. long; throat about 4 mm.
and lobes 1.5 mm. long; achenes 6-8 mm. long, 1 mm. wide; pappus of 3-5 squamellae, about
5 mm. long, with strong midrilj.
Type locality: Carmen Island, Lower California. Distribution: Lower California.

Palafoxia linearis là một loài thực vật có hoa trong họ Cúc. Loài này được (Cav.) Lag. mô tả khoa học đầu tiên.