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An alphabetical listing of General terms and items. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Habit   The overall appearance of a plant Halophilic   Preferring saline soils. Halophyte   A plant that grows in saline soils. Hastate   Resembling an arrowhead, particularly with respect to the lobed basal portion, which is usually at about right angles to the main portion. Hastiform   More or less hastate. Haustorium   In parasitic plants, a specialized outgrowth of a stem or root, serving for the absorption of food, as in the dodders. Head   A dense, compact cluster of mostly sessile flowers. [Plate 8] Also used to describe the inflorescence in the Asteraceae family. Heart-shaped Leaf   Broad, with two rounded lobes. Helicoid   Refers to racemes or spikes which are coiled from the tip downward with successive lateral branches arising on the same side. Helmet   A hood-shaped organ, usually a petal, best exemplified in the genus Aconitum. Herb   A non-woody, non-grass-like plant. Herbaceous   Not woody. Herbage   Referring to green leaves and shoots. Hilum   The scar or point of attachment of the seed. Hip   The unusual fruit exemplified by the genus Rosa. Hirsute   Beset with stiff or stiffish, usually straight, hairs. Hirsutulous   Slightly hirsute. Hirtellous   Minutely hirsute. Hispid   Coarsely hirsute or bristly-hairy. Hispidulous   Minutely hispid. Back to top Hoary   Pubescent with close, fine, usually grayish or whitish, hairs. Hood   Specifically, that part of the milkweed flower in which the stamens are greatly modified into hood-like organs; in general, an organ which is arched or concave. [Plate 10] Horn   A incurved body often present in the hooded body of milkweed flowers. Humifuse   Spreading over the ground. Hummock   A small, low mound in an otherwise wet plant community. Hyaline   Transparent or translucent. Hybrid   The progeny of sexual reproduction between two different, recognized species. Hybridized   Produced from two species. Hydromesophytic   Referring to the wet mesophytic swamps behind the high dunes near Lake Michigan. Hypanthium   Floral tube formed by the adnation of the sepals, petals, and stamens; most commonly tubular and simulating a calyx tube. Hypogynium   The disk-like structure subtending the ovary in the genus Scleria. Hypogynous   Flower with the calyx situated below the ovary. Back to top