Graderia
Genus of flowering plants in the broomrape family Orobanchaceae
From Wikipedia, the free encyclopedia
Graderia[1] is a genus of plants in the family Orobanchaceae, which is native to Africa and Socotra.[2] It belongs to the tribe Buchnereae.[3] It is a hemiparasitic taxon.[4]
| Graderia | |
|---|---|
 | |
| G. subintegra | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Orobanchaceae |
| Tribe: | Buchnereae |
| Genus: | Graderia Benth. |
Etymology
Graderia is a taxonomic anagram derived from the name of the confamilial genus Gerardia. The latter name is a taxonomic patronym honoring the English botanist John Gerard.[5]
Description
Sometimes a suffrutex with stems growing from a woody rhizome. Leaves may be opposite or alternate.[2] The solitary flowers appear in the axils, and have a five-lobed calyx and corolla. The flower is tubular with four stamens, in pairs of unequal length.[2] Each stamen has two divergent, oblong and curved thecae. The two-locular ovary has numerous ovules, and produces numerous seeds in a fruit capsule.[2]
Systematics
The genus includes some 4 species.[6]
- Graderia fruticosa Balf.f. is endemic to Socotra.
- Graderia linearifolia Codd
- Graderia scabra Benth.
- Graderia subintegra Mast.
