WorldFloraDB - Osteospermum muricatum

Characteristics

Herba normaliter perennis; caules 2-6 dm longi singuli vel saepius plures e caudice subterraneo lignoso usque 2 cm crasso exeuntes erecti vel adscendentes e basi ± lignescentes sat dense ramosi; caules et rami teretes striati asperi vel muriculati suhglabri vel ± dense hispidi-pubescentes, pilis brevissimis glanduliferis, partibus vetustioribus glabrati aliunde foliate, internodiis 3-10 mm longis. Folia alterna sessilia rigide membranacea pallide viridia vel glaucescentia glandulosa et viscida plerumque aspera glabra vel hispida glabrescentia linearia vel lineari-lanceolata-oblonga 0.5-4 cm longa 1-5 mm lata denticulata-grosse dentata-pinnatifida, dentibus vel laciniis acutis utrinque 3-8 posterioribus linearibus usque 5(-8) mm altis, vel rarius pauca integerrima; nervus medius subtus prominens. Capitula parva in apicibus ramulorum solitaria; ramuli capituliferi saepe corymbosi sat dense foliati, foliis summis ceteris brevioribus integerrimis vel subintegerrimis. Involucri squamae 7-10 in statu florendi subhiseriatae in fructificatione uniseriatae fere aequilongae (lineari-)lanceolatae-ovatae 3-6(-8) mm longae 1-2.5 mm latae acuminatae margine albido-scariosae ciliatae dorso glandulosae, glandulis saepius stipitatis. Flores radii involucri squamas numero aequantes; ligulae flavae interdum subtus passim violacentes aut lilacinae involucrum non vel parum (1-2 mm) superantes. Flores disci flavi involucro 1-2 mm breviores. Achaenia matura dura eglandulosa vel apicem versus sparse glandulosa, glandulis saepe brevissime stipitatis, obovoideo-obpyramidali-triangularia, angulo interiore ± conspicuo laevi vel rarissime 1-3-tuberculato, angulis duobus exterioribus transverse sulcatis 3-5luberculatis vel-aculeatis, aculeis usque 1 mm altis, basi acuta apice rotundata vel 3-tuberculata 3-5 mm longa 1.5-2.5 mm diam.; latus tangentiale ± rugosum et transverse sulcatum. latera radialia sublaevia vel costa obtusa longitudinali instructa.

More

Perennial herbs or shrublets, 20–60 cm high, basally ±woody and moderately branched, with c. 2 cm thick rhizome, rigid, viscid-glandular-hairy to ±glabrous. Leaves sessile, oblong to oblong-lanceolate or linear-lanceolate, (0.5–) 1–4 cm long, to c. 5 (–8) mm wide, denticulate to dentate-pinnatifid with acute lobes, glandular-viscid, grey-green. Capitula small, solitary, rarely becoming corymbose; involucre ±biseriate at anthesis, becoming uniseriate in fruit; bracts linear-lanceolate, 3–6 mm long, 1–2.5 mm wide, acuminate, whitish scarious on margins, with stipitate glands abaxially. Ray floret ligules 4–7 mm long, ±longer than involucral bracts, yellow. Disc florets yellow; tube c. 2–3 mm long. Achenes obovoid-obpyramidal, 3-angled, 3–5 mm long, 1.5–2 mm wide, muricate on back, with scattered stipitate glands near rounded apices.

Life form	perennial
Growth form	herb
Growth support	free-standing
Foliage retention	evergreen
Sexuality	hermaphrodite
Pollination	-
Spread	-
Mature width (meter)	-
Mature height (meter)	0.2 - 0.6
Root system	rhizome
Rooting depth (meter)	-
Root diameter (meter)	-
Flower color	-
Blooming months	-
Fruit color	-
Fruiting months	-
Nitrogen fixer	-
Photosynthetic pathway	-

Environment

Growing in sandy-loam soil of cultivated fields as a weed and on sandy roadsides.

Light	-
Soil humidity	-
Soil texture	-
Soil acidity	-
Soil nutriment	-
Hardiness (USDA)

Usage

Uses	material medicinal
Edible	-
Therapeutic use	-
Human toxicity	-
Animal toxicity	-

Cultivation

Mode	-
Germination duration (days)	10 - 15
Germination temperacture (C°)	15 - 18
Germination luminosity	light
Germination treatment	-
Minimum temperature (C°)	-
Optimum temperature (C°)	-
Size	-
Vigor	-
Productivity	-