Achyrospermum wallichianum (Benth.) Benth. ex Hook.f.
synonym | Teucrium wallichianum Benth. |
No Data |
Habit
Herbs
Family Description
Herbs,subshrubs or shrubs,often aromatic.Stems usually quadrangular.Leaves simple,rarely pinnatisect or compound,opposite and usually decussate or rarely whorled.Stipules absent.Inflorescence of cymes,often condensed,paired and appearing as whorls(verticillasters),in spike-like,capitate or paniculate arrangements,ocassionally cymes pedunculate and lax,forming a panicle.Bracts caducous or persistent;bracteoles present or absent.Flowers usually hermaphrodite.Calyx usually 5-lobed,bilabiate to regular or oblique.Corolla gamopetalous,regular to zygomorphic,4-5 lobed.Stamens 4,equal or varying in length or 2 with 2 staminodes;anthers 1-or-2-celled.Ovary superior,4-lobed,becoming 4-celled,each locule containing 1 basally attached ovule.Style completely gynobasic(arising from base of ovary between lobes) or only partially gynobasic,2-lobed or rarely punctate.Fruit of 4,usually dry,one-seeded nutlets,included in persistent calyx
Genus Description
Suffruscent herbs.Stems terete,ascending to erect.Leaves with lamina decurrent on petiole,margins serrate.Inflorescence terminal and axillary,spike-like;verticillasters many-flowered,condensed.Calyx weakly bilabiate,campanulate;teeth 5,upper lip 3-toothed.Corolla bilabiate;tube straight,annulate;upper lip bifid;lower lip 3-lobed,longer than upper,median lobe larger than laterals.Stamens 4,ascending,subequal,not exserted beyond upper lip;anthers 2-celled.Style bifid.Nutlets obovoid,with scaly processes on ventral surface and apex,scar small.
Species description
Stems 28-100cm,pubescent to glabrescent.Leaves elliptic-ovate,8.5-14.5 x 3.8-6.5cm,shortly acuminate,base cuneate with lamina extending along petiole,margins serrate,upper surface appressed pilose,lower surface pubescent on veins otherwise glabrous;petiole 1-3.5cm.Inflorescences 4-9 x c 2.5cm.Calyx 7-9mm;teeth triangular-ovate,those of upper lip 1.5mm,those of lower lip 3.5mm.Corolla white with pink markings,pink or pale,9-12mm;tube 7-10.5mm.Nutlets 2.5 x 1.7mm.
Root | Root |
Kingdom | Plantae |
Phylum | Tracheophyta |
Class | Magnoliopsida |
Order | Lamiales |
Family | Lamiaceae |
Genus | Achyrospermum |
Species | Achyrospermum wallichianum (Benth.) Benth. ex Hook.f. |