2 Araceae Arum
Arisaema triphyllum Jack In the Pulpit (Indian Turnip): 2 leaves with 3 leaflets & spathe (bract), green-purple flowers hermaphroditic: male flowers on upper of spadix, female on lower, change sex, trap fungus knats. male plants dormant in summer. corms & milky sap contain CA oxalate unless dried 6 months.
 
Symplocarpus foetidus Skunk Cabbage: spathe 27F warmer (accelerated respiration): beetles & spiders. flowers no petals, 4 tiny sepals: carrion flies in air current, early pollen for bees. Leaf buds start in fall, open when spathe begins to wilt after flowers, red berries. Yellow-throated Warbler nest in foul hollow.
Aristolochiaceae Birthwort
Asarum canadense Wild Ginger: maroon flower in crotch between 2 petioles, apetalous; 3 sepals, decayed fruit scent: beetles, flies. slow growth along flood plains with Ranunculus septentrionalis Swamp Buttercup, rhizome. Asian ginger: Zingiber officinale, Zingiberaceae. Elaiosome, shade tolerant.
Berberidaceae (Barbary)
Jeffersonia diphylla Twinleaf: 8-petaled blossom suggests Bloodroot but less brilliant, rich damp woods, limestone soils: 4 sepals fall, 8 stamens, 1 pistil. Clear sap. Basal leaves only, almost divided butterfly wings, rhizome, leathery capsule with elaiosome destroyed by rodents unless removed by ants.
 
Podophyllum peltatum Mayapple: poisonous except fruit meat. 6-petaled flowers in axil of 2-leaved plants, lime-like berries ripen in July? Circular colonies spread outward. Podophyllin treats genital warts. European Mandrake (Manroot) is Mandragora officinarum Solanaceae (Tomato), root man-shaped.
Boraginaceae Forget-Me-Not
Mertensia virginica Virginia Bluebells (Cowslip): upper leaves reduced to bracts, succulent hollow stem fragile, rhizome, preferably from seed. Buds pink (acidic), turn blue (basic) from Anthocyanin litmus: signal to pollinators; also protect leaves from UV. Bees chew thru flower: nectar robbers?
Brassicaceae (Cruciferae)
Dentaria laciniata (now Cardamine concatenata) Cut-leaved Toothwort (old English plant): tooth-like scales on peppery tuber, 4 X-shaped petals, silique pods. Stems rise directly from rhizomes, whorl of 3 leaves divided into 3 sharply-toothed segments. Cabbage, Turnip family: Broccoli, Sprouts, Radish.
Geraniaceae
Geranium maculatum Wild Geranium: crane's bill pod splits from bottom, eject seeds when dry. Rhizomes contain tannin. Nectar guides on 5 petals, 5 thin green sepals, hermaphroditic: male then female stages, pollinated by solitary wasps. Pelargonium x hortorum Garden Geranium same family, S. Africa.
Violaceae
Viola sororia Common Blue: Regal Fritillary. Vitamin A&C; 2 types flowers: spring 4 petals + spurred lower for landing, nectar guides on 2 side petals. Summer cleistogamous: no petal, never open, self-fertilized. Elaiosome. Stamens sometimes grow into pistil. In all 120 counties, from 1893 World's Fair.