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Displaying 41 - 70 out of 70 Object(s)
Term Definition
Prop roots Aerial, densely packed, adventitious roots that are circular in transverse section. Prop roots do not allow light to be seen through them whereas stilt roots do. Line drawing of Socratea exorrhiza. Drawing by J.-J. de Granville.
Prostrate Creeping flat along the ground, usually referring to stems growing along the ground that produce roots at their nodes. Same as repent. A prostrate species of Portulaca. Photo by S. A. Mori.
Pseudomonopodial Referring to a plant having a primary stem with sympodial growth and secondary stems with monopodial growth. A prostrate species of Portulaca. Photo by S. A. Mori.
Repent Creeping flat along the ground, usually referring to stems growing along the ground that produce roots at their nodes. Same as prostrate. Habit of Mitchella repens. Photo by C. Carollo
Rosette An arrangement of leaves radiating from the base of the stem and usually placed close to the ground. A basal rosette of leaves. Drawing by B. Angell.
Rosulate Referring to a cluster of leaves arranged in a rosette. A basal rosette of leaves. Drawing by B. Angell.
Running buttress A thick, rounded buttress that extends along the ground several meters or more from the trunk. Compare with flying buttress and plank buttress. Tree of Caryocar glabrum. Photo by C. A. Gracie.
Sapling A young tree. A tree ceases to be a sapling after it has flowered for the first time; however sometimes trees attain large sizes before they flower and a tree over several centimeters is usually not considered to be a sapling. Tree of Caryocar glabrum. Photo by C. A. Gracie.
Sarmentose Referring to a plant that produces long, slender runners. Tree of Caryocar glabrum. Photo by C. A. Gracie.
Scandent Climbing. Tree of Caryocar glabrum. Photo by C. A. Gracie.
Scape (scapose) A leafless, often bracteate peduncle that arises from near the base of the plant; e.g., in Xyris (Xyridaceae) and many terrestrial Orchidaceae. A terrestrial orchid. Drawing by B. Angell.
Shingle leaves Broadly overlapping, simple, juvenile leaves that are markedly different from adult leaves of the same species; e.g., in certain species of Araceae and Marcgravia spp. (Marcgraviaceae). Juvenile leaves of Monstera dubia. Photo by C. A. Gracie.
Short shoot A condensed branchlet bearing leaves at the apex. The shoots are usually covered aggregated scars. Flabellate (flabelliform) leaves and short shorts. Photos by S. A. Mori.
Shrub A woody plant that is branched at the base or unbranched but less than 2 meters tall. The difference between unbranched shrubs and treelets is sometimes unclear. Compare with treelet and tree. Shrubs in the understory of a forest in Westchester County, New York. Photo by S. A. Mori.
Stilt roots Aerial, woody, adventitious roots that are circular in transverse section. Stilt roots are not densely aggregated so light can be seen between the individual stilt roots; e.g., in (Arecaceae). Prop and stilt roots. Photos by S. A. Mori.
Strangler A plant that grows upon another plant in such a way that its roots surround the host and eventually cause it to die; e.g., in some species of Ficus (Moraceae). A strangler can become a free-standing tree after the host plant dies. Strangler habit of Ficus pertusa. Photo by R. Aguilar.
Subshrub A plant that is intermediate between a herb and a shrub and slightly woody only at the base; a perennial plant woody only at the base. Same as suffrutex. Strangler habit of Ficus pertusa. Photo by R. Aguilar.
Succulent Fleshy and juicy, many species of Cactaceae and some species of Euphorbiaceae are succulent. Plant of Hylocereus trigonus. Photo by C. Gracie
Suffrutescent Adjectival form of suffrutex. Plant of Hylocereus trigonus. Photo by C. Gracie
Suffrutex (plural = suffrutices) A plant that is intermediate between a herb and a shrub and slightly woody only at the base; a perennial plant woody only at the base. Same as subshrub. Plant of Hylocereus trigonus. Photo by C. Gracie
Sympodial growth Referring to a branching pattern in which the terminal bud ceases to grow and growth is continued from a lateral bud; e.g., in most arborescent Combretaceae and some orchids. Sympodial growth often gives a zig-zag appearence to the stem or branches. Sympodial growth. Photo by C. A. Gracie.
Tendril Coiled or spring-like extensions of a stem, stipules, leaves, part of a leaf, inflorescence that assist in climbing into shrubs and trees. Common iin Bignoniaceae, Cucurbitaceae, Passifloraceae, Sapindaceae, Vitaceae, and other plant families. Examples of tendrils. Drawing by B. Angell.
Tendrillate Bearing tendrils or tendril-like structures. Examples of tendrils. Drawing by B. Angell.
Thallus (adj. = thalloid) A generalized term used to describe the prostrate axis of a plant that is not differentiated into stem, leaf, and root. Thalloid bryophyte showing asexual and sexual reproduction. Photo by B. Thiers.
Tree An erect, usually single-stemmed, woody plant 5 centimeters or more dbh (diameter at breast height); some trees may have multiple trunks but at least some of the trunks are 5 centimeters or more in diameter. Compare with treelet. Thalloid bryophyte showing asexual and sexual reproduction. Photo by B. Thiers.
Treelet An erect, single-stemmed, woody plant less than 5 centimeters dbh and more than 2 meters tall; differences between treelets and unbranched shrubs or trees are sometimes unclear. Compare with shrub and tree. Thalloid bryophyte showing asexual and sexual reproduction. Photo by B. Thiers.
Trunk The main stem of a tree, including buttresses, prop roots, etc. Compare with bole. Buttresses and bole of a tree. Drawing by B. Angell.
Tussock A dense clump or tuft of herbaceous stems formed by some species of grasses (Poaceae) and sedges (Cyperaceae). Caespitose growth form of Carex stricta. Photo by S. A. Mori.
Twig A small branch of a tree to which the leaves are attached, i.e., the ultimate, leaf-bearing branch. Twig of Lecythis prancei. Photo by S. A. Mori.
Vine A nonwoody, climbing plant; some authors do not distinguish between liana and vine. Compare with liana. Twig of Lecythis prancei. Photo by S. A. Mori.