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Acad annual anthers anthesis axillary axils basal leaves base Benth bilabiate blade bracteate bracts branched broad Bull Calif calyx calyx lobes capsule Cascade Range Cascades Castilleja caudex cauline leaves cleft Colo commonly conspicuously Contr corolla tube Cronq cymes dehiscent densely Douglas elevations elliptic elongate entire erect Erythea Eurasia evidently exserted filaments flowers fruit galea Gilia glabrous glandular Greene hairs hairy herbage hoc loc inconspicuous inflorescence June-Aug lanceolate less linear lower lip Macbr moist Mont mountains narrow narrowly nearly Nels nutlets oblanceolate Oreg ovary ovate pair pedicels Pennell Penstemon perennial petiolate Pflanzenr Phila Piper plants pollen sacs Proc puberulent pubescent racemes range rhizomes Rocky Mts Rydb scarcely seeds segments sepals sessile short shorter slender slightly sometimes species stamens staminode stems stigma strigose style Suksd Suksdorf tall taproot terminal toothed Torrey Club U.S. Nat upper usually verticillasters Wash wide yellow