GLOSSARY 567 
Fruit. The seed-bearing product of any plant, simple, compound, or 
aggregated, of whatever form. 
Glabrous. Smooth; without hairs. 
Gland. A secreting cell or structure. 
Glaucous. Covered with a white or bluish-white bloom. 
Globose. Nearly spherical. 
Glume. One of the two outer chaffy bracts at the base of the spikelet 
in the grasses. 
Habitat. A plant’s natural place of growth. 
Halberd-shaped. Like an arrow-head but with the basal lobes pointing 
outward instead of backward. 
Herb. A plant with no persistent woody stem above the ground. 
Hirsute. Bearing rather coarse, stiff hairs. 
Hispid. Set with rigid or bristly hairs. 
Imbricated. Overlapping. 
Included. Not protruding from the surrounding envelope, as the 
stamens from the corolla. 
Indehiscent. Persistently closed; a fruit covering without an opening. 
Indigenous. Native to the region of growth. 
Inflated. Bladder-like. 
Inserted. Attached to or growing out of. 
Internode. The portion of a stem between two nodes or joints. 
Introduced. Brought from another region to the place of growth. 
Involucre. A circle or whorl of bracts subtending a flower cluster, 
or a head, or a single flower. 
Involute. Rolled inward. 
Irregular. Showing inequality in size and form of similar parts. 
Keeled. Centrally ridged along the back. 
Leaflet. A single division of a compound leaf. 
Lemma. The lower of the two bracts inclosing the flower in the grasses. 
Ligule. The thin projection at the top of the sheath in grasses; the 
ray flowers in Composites. 
Linear. Long and narrow with sides nearly parallel. 
Lobe. Any segment of an organ, especially if rounded. 
Lyrate. Pinnatifid, with the terminal lobe much larger than the 
others. 
Membranous. Thin, rather soft and more or less translucent. 
Moneecious. Bearing stamens and pistils in different flowers but on 
the same plant. 
Naturalized. Not native to the region of growth. 
Nectary. An organ or cavity where nectar is secreted. 
Nerve. An unbranched vein or a slender rib. 
