Linum elongatum (Small) Winkl.

Cathartolinum elongatum Small, sp. no v Plants 2-3.5 dm. tall, deep-green. Stems branched at the base, the branches, mostly assurgent, striate or somewhat angled, corymbosely branched above, the branches of the inflorescence greatly elongated, erect or ascending; leaves rather numerous, but not crowded, ascending or spreading, the blades somewhat succulent, those of the lower leaves linear-spatulate and 1-2 cm. long, those of the upper ones very narrowly linear and about twice as long as those of the lower ones, all entire ; bracts linear-attenuate, rather inconspicuouslv glandular-toothed; outer sepals linear-lanceolate, becoming 11-14 mm. long, attenuate, quite evenly glandular-toothed ; inner sepals lanceolate, broader than the outer ones, and more closely toothed ; petals yellow, longer than the sepals ; capsules not seen.
Type collected at Laredo, Texas, March 21, 1903, B. F. Bush 3776. Distribution : Texas.

Linum elongatum là một loài thực vật có hoa trong họ Linaceae. Loài này được (Small) H.J.P. Winkl. mô tả khoa học đầu tiên năm 1931.