YELLOW GROUP 



Marsh Cress 



Radicula palustris. — Family, Mustard. Color, yellowish. Plant 

 i to 4 feet high. Leaves, alternate, pinnately cleft or parted, the 

 upper slashed or cut into very fine pieces, the lower divided or 

 cleft, very pungent to the taste. Pods, short, curved, on stalks 

 of the same length. May to August. 



In wet places or often found growing in shallow water. 



Common Winter Cress. Yellow Rocket 



Ba.rba.rea. vulgaris (named from St. Barbara, and called the 

 Herb of St. Barbara). — Family, Mustard. Color, yellow. Flow- 

 ers, in terminal, long racemes, pods below, blossoms above. 

 Pod, linear, round, or somewhat 4-sided. Leaves, the lower lyrate, 

 having a large, terminal lobe; the upper deeply cut at base, 

 rounded at apex. Smooth perennial. 



Roadsides and wet ground East and West. 



Ditch Stonecrop 



Pinthorum sedotdes. — (See description in chapter on Green 

 Flowers, p. 31.) 



Mossy Stonecrop 



Sedum acre. — Family, Orpine. Color, yellow. Sepals and 

 petals, 4 or 5. Stamens, twice as many as petals. Pistils, 4 or 5. 

 Leaves, thick, fleshy, small, overlapping on the branches, like 

 scales. June and July. 



Moss-like plants spreading on the ground, better known 

 in hanging baskets and urns, but found escaped from culti- 

 vation and growing wild on rocky places, roadsides, and 

 fields from New England to Virginia and westward. 



Yellow Mountain Saxifrage 



Saxifraga aizoides. — Family, Saxifrage. Color, yellow, with 

 often orange-colored spots. Sepals and petals, 5. Stamens, 10. 

 Styles, 2. Flowers, in corymbs at the ends of the branches, with 

 slender pedicels. Leaves, long, narrow, lance-shaped, alternate, 

 fleshy, the margins clothed with spiny hairs, narrowed at base, 

 sessile, numerous on stem, and clustered at root. June to August. 



Low plants, matted or tufted, smooth, 2 to 6 inches high. 

 On wet rocks, almost an arctic plant, but found in Vermont 

 and western New York. Delicate and pretty. 



False Goat's Beard 



Astilbe biternata. — Family, Saxifrage. Color, yellowish or 

 white. Calyx, small, 4 to 5-parted. Corolla, sometimes wanting, 



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