| Literature for Plantago princeps
Wagner et al., 1990, 1999. Literature for Plantago princeps var. anomala
Wagner et al., 1990, 1999. Literature for Plantago princeps var. longibracteata
Wagner et al., 1990, 1999. Literature for Plantago princeps var. princeps
Wagner et al., 1990, 1999.
|Plantaginaceae -- The Plantain Family||Bibliography|
||Small shrubs or (in var. longibracteata) robust perennial herbs; stems hollow, erect or ascending, ca. 0.2-25 dm long, often branched, young internodes ± woolly with reddish brown hairs.
||Leaves tufted near the tips of the stems, thick, coriaceous, narrowly oblong-lanceolate to narrowly elliptic or sometimes elliptic, 6-30 cm long, 1.5-5 cm wide, (3-)5-9-nerved, the nerves usually converging toward base, glabrous or lower surface sometimes appressed pilose, margins minutely and remotely denticulate or entire, apex
acute to acuminate, slightly narrowed at base and sessile, or gradually attenuate to a winged petiole up to 5 cm long.
||Scapes usually several, 10-50 cm long, spikes (7-)11-28 cm long, glabrous to sparsely pilose, flowers densely crowded, sometimes spike somewhat interrupted, each flower spreading at nearly 90E angle to the axis or (in var. longibracteata) ascending, bracts lanceolate, 1.2-3 mm long, glabrous but sometimes woolly at base; sepals subequal, distinct, elliptic to elliptic-ovate, 1.8-3.2 mm long, scarious except on midrib, glabrous or ciliate, apex sometimes minutely erose; corolla lobes spreading, 1.5-2 mm long; ovary apparently with (2?)4 ovules.
||Capsules narrowly ovoid-ellipsoid, 3-3.8 mm long, slightly exserted from calyx, dehiscent at a point 2/3 to base or slightly more.
||Seeds 3-4, black, ellipsoid to oblong-ellipsoid, 1.5-2.1 mm long, the surface apparently with a mucilaginous membrane.
||2n = 12*