(Erigeron annus) Thistle family Flower-heads - Numerous, daisy-like, about 1/2 in. across; from 40 to 70 long, fine, white rays (or purple- or pink-tinged), arranged around yellow...
(Inula Helenium) Thistle family Flower-heads - Large, yellow, solitary or a few, 2 to 4 in. across; on long, stout peduncles; the scaly green involucre nearly 1 in. high, holding d...
(Benzoin Benzoin; Lindera Benzoin of Gray) Laurel family Flowers - Before the leaves, lemon yellow, fragrant, small, in clusters close to the slender, brittle twigs. Six petal-like...
(Tecoma radicans) Trumpet-creeper family Flowers - Red and veined within, paler and inclined toward tawny without, trumpet-shaped, about 2 1/2 in. long, the limb with 5 rounded lob...
(Linnaea borealis) Honeysuckle family Flowers - Delicate pink or white tinged with rose, bell-shaped, about 1/2 in. long, fragrant, nodding in pairs on slender, curved pedicels fro...
(Rubus strigosus) Rose family Flowers - White, about 1/2 in. across, on slender, bristly pedicels, in a loose cluster. Calyx deeply 5-parted, persistent in fruit; 5 erect, short-li...
(Hypoxis hirsuta; H. erecta of Gray) Amaryllis family Flowers - Bright yellow within, greenish and hairy outside, about 1/2 in. across, 6-parted; the perianth divisions spreading,...
Class and Order. Polyandria Pentagynia. Generic Character. Cal. 0. Petala 5. Nectaria 5 corniculata, inter petala. Caps. 5 distinctæ. Specific Character and Synonyms. AQUILEGIA can...
(Draba verna) Mustard family Flowers - Very small, white, distant, growing on numerous scapes 1 to 5 in. high; in formation each flower is similar to all the mustards, except that...
Class and Order. Syngenesia Monogamia. Generic Character. Cal. 5-fidus. Cor. 1-petala, irregularis. Caps. infera, 2 sive 3-locularis. Specific Character and Synonyms. LOBELIA surin...
(Aisine media; Stellaria media of Gray) Pink family Flowers - Small, white, on slender pedicels from leaf axils, also in terminal clusters. Calyx (usually) of 5 sepals, much longer...
(Onagra biennis; Qenothera biennis of Gray) Evening-primrose family Flowers - Yellow, fragrant, opening at evening, 1 to 2 in. across, borne in terminal leafy-bracted spikes. Calyx...
(Daucus Carota) Carrot family Flowers - Small, of unequal sizes (polygamous), white, rarely pinkish gray, 5-parted, in a compound, flat, circular umbel, the central floret often da...
(Viola) Violet family Three small-flowered, white, purple-veined, and almost beardless species which prefer to dwell in moist meadows, damp, mossy places, and along the borders of...
(Actaea alba) Crowfoot family Flowers - Small, white, in a terminal oblong raceme. Calyx of 3 to 5 petal-like, early-falling sepals; petals very small, 4 to 10, spatulate, clawed;...
(Convolvulus sepium; Calystegia sepium of Gray) Morning-glory family Flowers - Light pink, with white stripes or all white, bell-shaped, about 2 in. long, twisted in the bud, solit...
(Sabbatia angularis) Gentian family Flowers - Clear rose pink, with greenish star in center, rarely white, fragrant, 1 1/2 in. broad or less, usually solitary on long peduncles at...
Class and Order. Diadelphia Hexandria. Generic Character. Cal. diphyllus. Cor. ringens. Filamenta 2 membranacea singula Antheris 3. Specific Character and Synonyms. FUMARIA cava, c...
Class and Order. Monadelphia Heptandria. Generic Character. Cal. 5-partitus: lacinia suprema desinente in tubulum capillarem, nectariferum, secus pedunculum decurrentem. Cor. 5-pet...
(Phlox subulata) Phlox family Flowers - Very numerous, small, deep purplish pink, lavender or rose, varying to white, with a darker eye, growing in simple cymes, or solitary in a W...
(Habenaria ciliaris) Orchid family Flowers - Bright yellow or orange, borne in a showy, closely set, oblong spike, 3 to 6 in. long. The lip of each flower copiously fringed; the sl...
(Oxalis stricta) Wood-sorrel family Flowers - Golden, fragrant, in long peduncled, small, terminal groups. Calyx of 5 sepals; corolla of 5 petals, usually reddish at base; stamens,...
(Castilleja coccinea) Figwort family Flowers - Greenish yellow, enclosed by broad, vermilion, 3-cleft floral bracts; borne in a terminal spike. Calyx flattened, tubular, cleft abov...
(Magnolia Virginiana; M. glauca of Gray) Magnolia family Flowers - White, 2 to 3 in. across, globular, depressed, deliciously fragrant, solitary at ends of branches. Calyx of 3 pet...
(Anagallis arvensis) Primrose family Flower - Variable, scarlet, deep salmon, copper red, flesh colored, or rarely white; usually darker in the center; about 1/4 in. across; wheel-...
(Senecio aureus) Thistle family Flower-heads - Golden yellow, about 3/4 in. across, borne on slender peduncles in a loose, leafless cluster; rays 8 to 12 around minute disk florets...
(Hieracium aurantiacum) Chicory family Flower-beads - Reddish orange; 1 in. across or less, the 5-toothed rays overlapping in several series; several heads on short peduncles in a...
(Dodecatheon Meadia) Primrose family Flowers - Purplish pink or yellowish white, the cone tipped with yellow; few or numerous, hanging on slender, recurved pedicels in an umbel at...