Senecio

Belongs within: Asteroideae. Senecio, the groundsels, is a large genus of composite-flowered plants found worldwide. Some species are significant as invasive pasture weeds, such as the toxic ragwort S. jacobaea. The fireweed S. madagascariensis, native to Africa, is potentially a serious pasture weed in Australia, but control has been complicated by taxonomic confusion between S.… Continue reading Senecio

Asteroideae

Belongs within: Asteraceae.Contains: Erechtites, Senecio, Othonninae, Calenduleae, Gnaphalieae, Astereae, Anthemideae, Inuleae, Plucheeae, Helenieae, Coreopsideae, Chaenactis, Heliantheae, Madia, Eupatorium, Brickellia. The Asteroideae is a major clade within the composite-flowered plants, a major characteristic of which is the presence of true ray florets in many species. Around 3000 species within the Asteroideae are placed in the tribe… Continue reading Asteroideae

Gnaphalium

Belongs within: Gnaphalieae. Gnaphalium is a genus of woolly herbs bearing clustered, heterogamous-discoid heads (Black & Robertson 1965). Characters (from Black & Robertson 1965): Tomentose or woolly herbs with alternate leaves; flowerheads small, usually clustered. Involucre ovoid, bracts in several rows, upper half scarious; receptacle naked; flowers all tubular, not exceeding involucre, outer ones female,… Continue reading Gnaphalium

Gnaphalieae

Belongs within: Asteroideae.Contains: Raoulia, Anaphalis, Ozothamnus, Rhodanthe, Podolepis, Angianthus, Craspedia, Calocephalus, Gnaphalium, Cassinia, Helipterum, Helichrysum, Haastia. The Gnaphalieae are the tribe of composite-flowered plants including the everlastings and related taxa. Heads are mostly heterogamous in members of the subtribes Athrixinae and Gnaphaliinae but homogamous-discoid in Angianthinae. Members of the Athrixinae have fewer outer female flowers in the… Continue reading Gnaphalieae

Helichrysum

Belongs within: Gnaphalieae. Helichrysum is a genus of everlastings widespread throughout the Old World. Heads have a naked receptacle with involucral bracts mostly scarious or with inner bracks petaloid and radiating (Black & Robertson 1965). Members of the section Xerochlaena are prostrate creepers with herbaceous or very softly woody stems (Allan 1961). Characters (from Black… Continue reading Helichrysum

Artemisia

Belongs within: Anthemideae.Contains: Artemisia section Tridentatae. Artemisia, including sagebrushes and wormwoods, is a mostly Northern Hemisphere genus of usually strong-smelling, wind-pollinated herbs and shrubs. Notable species include wormwood A. absinthium, used to make the spirit absinthe, and tarragon A. dracunculus, used as a culinary herb. Plants have discoid or disciform capitula with all florets hermaphroditic… Continue reading Artemisia

Rhodanthe

Belongs within: Gnaphalieae. Rhodanthe is an Australian genus of everlasting daisies. Characters (from Flora of Victoria): Annual or perennial herbs, glabrous or variously hairy. Leaves entire, sessile, mostly alternate. Capitula solitary or clustered, homogamous or heterogamous, discoid or disciform, subtending leaves, if present, grading to involucral bracts; involucral bracts multiseriate, scarious, each with or without… Continue reading Rhodanthe

Podolepis

Belongs within: Gnaphalieae. Podolepis is an Australian genus of wiry herbs producing commonly yellow flowerheads with involucres bearing membranous bracts (Black & Robertson 1965). Characters (from Black & Robertson 1965): Rather rigid wiry herbs with alternate entire leaves; flowerheads terminal, usually solitary; flowers usually all yellow. Involucre ovoid to hemispherical, the bracts unequal in several… Continue reading Podolepis

Vittadinia

Belongs within: Astereae. Vittadinia is an Australasian genus of hairy perennial herbs and subshrubs. Characters (from Black & Robertson 1965): Perennial herbs or small undershrubs with alternate leaves. Involucre cylindrical or campanulate; bracts narrow, in three to five unequal rows, with scarious margins; receptacle naked; ray-flowers female, about 15–40, ligules narrow, arranged in two or… Continue reading Vittadinia

Filago

Belongs within: Inuleae. Filago, herba impia, is a Holarctic genus of greyish composite-flowered herbs. Characters (from Hickman 1993): Annual, greyish, cobwebby to tomentose. Stems generally more or less evenly leafy below, more or less leafless between upper forks. Leaves simple, alternate or seeming whorled, more or less sessile, entire. Inflorescence with heads disciform, more or… Continue reading Filago