Plantago psyllium L.
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Plantaginaceae
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Scientific Name
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Description
Species Description - Short-lived, mostly annual, 1–6 dm, evidently hirsute and tending to be a little viscid; lvs numerous, cauline, opposite, linear or nearly so, entire, 2–8 cm × 1–3 mm; peduncles axillary, 2–8 cm; spikes 0.5–1.5 cm, dense, nearly 1 cm thick; bracts broad, rounded, conspicuously scarious-margined; the lowermost abruptly and firmly foliaceous-caudate; cor-lobes 1.5–2 mm, soon reflexed; seeds 1 or 2, brown, 2–3 mm; 2n=12. A weed in waste places, especially along railroad tracks; native to the e. Mediterranean region, now well established in e. U.S. (P. indica; P. arenaria) The name has often been misapplied to a related sp. without caudate tips on the bracts.
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Common Names
leafy-stemmed plantain