. Bulletin. Agriculture. PLANTS I'UKNlSHlNt; M KDICI N AL LEAVES AND 11 KKBS. 37 GUM PLANT. (1) GrindeUa rohusLa Null.; (2) GnndcUu squarrosd (Pursh) Dimal. Pharmaco panel I name.—Grindelia. Other common names.—(2) IJroad-leaved gum plant, scaly grindelia. Habitat and range.—The gum plant (Grindelia robusta) occurs in the States west of the Rocky Mountainti, while the broad-leaved gum plant (G. s(piarrosa) is more widely distributed, being of common occurrence on the plains and prairies from the Saskatchewan to Minnesota, south to Texas and Mexico, and westward to California. Description.—The
. Bulletin. Agriculture. PLANTS I'UKNlSHlNt; M KDICI N AL LEAVES AND 11 KKBS. 37 GUM PLANT. (1) GrindeUa rohusLa Null.; (2) GnndcUu squarrosd (Pursh) Dimal. Pharmaco panel I name.—Grindelia. Other common names.—(2) IJroad-leaved gum plant, scaly grindelia. Habitat and range.—The gum plant (Grindelia robusta) occurs in the States west of the Rocky Mountainti, while the broad-leaved gum plant (G. s(piarrosa) is more widely distributed, being of common occurrence on the plains and prairies from the Saskatchewan to Minnesota, south to Texas and Mexico, and westward to California. Description.—The name "gum plant" is applied especially to Grindelia robusta on account of the fact that the entire plant is covered with a resinous substance, giving it a gummy, varnishedappear- ance. It is an erect per- ennial herb belonging to the aster family (Aster- ace*) and has a round smooth stem, about l^- feet in height. The leaves are pale green, leathery in texture and rather rigid, coated with resin and showing numerous trans- lucent dots, and are about an inch in length. In out- line they are oblong spat- ulate^that is, having a broad, rounded top gradu- ally narrowing toward the base—clasping the stem and with margins some- what saw toothed The plant branches freely near the top, each branch some- what reddish and termi- nating in a large yellow flower. The yellow flowers are about three-fourths of an inch in diameter, broader than long, and are borne singly at the ends of the branches. Immediately beneath the flower is a set of numerous, thick, overlapping scales (the involucre), the tips of which are rolled forward, the whole heavily coated with resin. 219. Fig. 29.—Scaly grindolia {Grindelia squarrosa), leaves and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States.
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Keywords: ., bookcentury1900, bookdecade1900, bookpubl, booksubjectagriculture
