Actinomorphic Perianth | With radially arranged perianth parts; ray-like figure. |  |
Bilabiate Perianth | Two-lipped, with two unequal divisions. |  |
Calcarate Perianth | Spurred. |  |
Calceolate Perianth | Slipper-shaped, as in the corolla of Cypripedium. |  |
Campanulate Perianth | Bell-shaped; with flaring tube about as broad as long and a flaring limb. |  |
Carinate Perianth | Keeled. |  |
Corniculate Perianth | Horned. |  |
Coronate Perianth | Tubular or flaring perianth or staminal outgrowth; petaloid appendage. |  |
Cruciate Perianth | Four separate petals in cross form. |  |
Cucullate Perianth | Hooded. | |
Dichlamydeous Perianth | With two perianth parts, a distinct calyx and corolla. | |
Galeate Perianth | Helmet-shaped, as one sepal in Aconitum. |  |
Gibbous Perianth | Inflated on one side near the base. |  |
Homochlamydeous Perianth | With perianth composed of similar parts, each part a tepal. | |
Infundibular Perianth | Funnel-shaped. |  |
Ligulate or Ray Perianth | Strap-shaped. |  |
Papilionaceous Perianth | With large posterior petal (banner or standard) two lateral petals (wings) and usually two connate lower petals (keel); as in the Fabaceae. |  |
Perianth | An aggregation of tepals or combined calyx and corolla. | |
Perianth and Androecium Position | Classification based on insertion of Floral Parts--Corolla, Calyx, and Androecium--the androperianth. | |
Perianth Anterior Lobes | The lobes away from axis, toward the subtending bract; abaxial lobes. |  |
Perianth Anterior Ridges, Lines, Grooves | The lines, grooves, ridges in or on the dorsal side, abaxial, within the perianth. |  |
Perianth Base | Bottom or lower portion. |  |
Perianth Beard | A tuft, line or zone of trichomes (hairs). |  |
Perianth Bristle | A stiff, strong trichome (hair), as in the perianth of some members of the Cyperaceae. |  |
Perianth Callosity | A thickened, raised area, which is usually hard; a callus. | |
Perianth Carina | Keel. |  |
Perianth Claw | The long, narrow petiole-like base of a sepal or petal. |  |
Perianth Corona | A crown; any outgrowth between the stamens and corolla which may be petaline or staminal in origin. |  |
Perianth Dorsal Side | Back or abaxial side, or the lower side of a perianth part. |  |
Perianth Faucal Area | The throat area. | |
Perianth Fringe | The modified margin of a petal, sepal, tepal or lip. |  |
Perianth Hood | A cover-shaped perianth part, usually with a turned down margin. |  |
Perianth Horn | A curved, pointed and hollow protuberance from the perianth. | |
Perianth Hypogynium | Perianth-like structure of bony scales subtending the ovary, as in Scleria and other members of the Cyperaceae. |  |
Perianth Keel | The two united petals of a papilionaceous flower; any structure ridged like the bottom of a boat. | |
Perianth Ligule | The strap-shaped portion of a ray or ligulate corolla. |  |
Perianth Limb | Expanded portion of corolla or calyx above the tube, throat or claw. |  |
Perianth Lip or Labellum | Either of two variously shaped parts into which a corolla or calyx is divided, usually into an upper and lower lip, as in the Lamiaceae and Orchidaceae. |  |
Perianth Lobe | Any, usually rounded, segment or part of the perianth. | |
Perianth Lodicule | Abortive perianth part in the Poaceae; hyaline scales at base of ovary in the Poaceae. |  |
Perianth Palate | The raised area in the throat of a sympetalous corolla. |  |
Perianth Pappus | Bristly or scaly calyx in the Asteraceae. |  |
Perianth Petal | A corolla member or segment; a unit of the corolla. |  |
Perianth Posterior Lobe | The lobe next to axis, away from the subtending bract; adaxial lobe. | |
Perianth Posterior Ridges, Lines, Grooves | The lines, grooves, ridges in or on the ventral side, adaxial, within the perianth. | |
Perianth Pouch or Sac | A bag-shaped structure. |  |
Perianth Scale | Small, scarious to coriaceous flattened bodies within the perianth, as in the Cyperaceae and Asteraceae. |  |
Perianth Sepal | A calyx member or segment; a unit of the calyx. | |
Perianth Spur | A tubular or pointed projection from the perianth. |  |
Perianth Standard, Banner, or Vexillum | The upper, usually wide petal in a papilionaceous corolla. |  |
Perianth Tepal | A member or segment of perianth in which the parts are not differentiated into distinct sepals and petals. |  |
Perianth Throat | An open, expanded tube in the perianth. | |
Perianth Tube | The cylindrical part of the perianth. |  |
Perianth Types | Classification based primarily on fusion of parts. | |
Perianth Ventral Side | Top side or upper side of a perianth part. | |
Perianth Wing | Lateral petals, as in the Fabaceae; a flattened extension, appendage or projection from a perianth part. | |
Personate Perianth | Two-lipped with the upper arched and the lower protruding into corolla throat. |  |
Rotate Perianth | Wheel-shaped, with short tube and wide limb at right angles to tube. |  |
Saccate Perianth | Pouch-like. |  |
Salverform Perianth | Trumpet-shaped. With slender tube and limb nearly at right angles to tube. |  |
Subglobose Perianth | Almost round or spherical. |  |
Sympetalous Perianth | With fused petals. | |
Synsepalous Perianth | With fused sepals. | |
Tubular Perianth | Cylindrical. |  |
Unguiculate Perianth | Clawed. |  |
Urceolate Perianth | Urn-shaped. |  |
Ventricose Perianth | Inflated on one side near the middle. | |