6a. Spur of corolla very short and blunt =Bladderwort, Utricularia gibba.= 6b. Spur of corolla very long and slender =Bladderwort, Utricularia cornuta.= 7a. Spur of corolla very short and blunt, or almost none =Bladderwort, Utricularia minor.= 7b. Spur of corolla long and slender =Bladderwort, Utricularia intermedia.= OROBANCHACEAE, the Broom-rape Family Parasitic plants without green color and with scales in place of leaves; corolla 2-lipped, of united petals; stamens 4, attached to the corolla. 1a. Flowers in a widely branching panicle, numerous; growing under beech trees (1-5 dm. high; flowers white and purple, late summer) =Beech Drops, Epifagus virginiana.= 1b. Flowers sessile in a dense bracted spike (1-2 dm. high; flowers pale-yellow, early summer) =Squaw-root, Conopholis americana.= 1c. Flowers 1-15, each on a long erect naked peduncle (1-2 dm. high; flowers yellowish or pale-violet, spring and summer) (Cancer-root) --2. 2a. Stem erect and scaly, 5-10 cm. high =Cancer-root, Orobanche fasciculata.= 2b. Stem very short, almost below the surface of the ground, with long erect peduncles =Cancer-root, Orobanche uniflora.= ACANTHACEAE, the Acanthus Family Herbs with opposite simple leaves; corolla of united petals, 2-lipped or almost regular; stamens 2 or 4, attached to the corolla; ovary 2-celled. 1a. Corolla about 10 mm. long; flowers in dense heads (4-10 dm. high; flowers blue or white, summer) =Water Willow, Dianthera americana.= 1b. Corolla about 30 mm. long; flowers axillary (3-8 dm. high; flowers blue, in summer) (Ruellia) --2. 2a. Foliage glabrous or slightly pubescent =Ruellia, Ruellia strepens.= 2b. Foliage densely hirsute =Ruellia, Ruellia ciliosa.= PHRYMACEAE, the Lopseed Family Herb with opposite leaves and irregular flowers in long slender spikes; petals united, corolla 2-lipped; stamens 4, attached to the corolla; ovary 1-celled. One species only, 5-10 dm. high; flowers purple, in summer =Lopseed, Phryma leptostachya.= PLANTAGINACEAE, the Plantain Family Herbs with basal leaves and small white flowers in spikes; sepals 4; petals 4, united; stamens 4; ovary 2-celled. 1a. Leaves linear (1-4 dm. high; summer) --2. 1b. Leaves broader, lanceolate to broadly ovate or cordate (summer) --3. 2a. Spikes mixed with bracts several times longer than the flowers =Buckhorn, Plantago aristata.= 2b. Bracts about as long as the flowers =Plantain, Plantago purshii.=