Acanthospermum australe (Paraguay Bur)

https://fsus.ncbg.unc.edu/main.php?pg=show-taxon-detail.php&lsid=urn:lsid:ncbg.unc.edu:taxon:{DCD43F48-1CE6-4D74-B121-27D1BA9CEEA5}

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ASTERACEAE

*Acanthospermum australe (Loefling) Kuntze. Common name: Paraguay Bur, Sheep Bur, Paraguay Starbur. Phenology: (Mar-) May-Nov. Habitat: Disturbed areas. Distribution: Native of South America.

Origin/Endemic status: South America

Synonymy ⓘ: = Ar, C, F, Fl7, FNA21, G, K4, NY, RAB, S, SE1, Tx, Va, WH3; = n/a — Pa; Melampodium australe Loefling. Basionym: Melampodium australe Loefl. 1758

Links to other floras: = Acanthospermum australe - FNA21

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Horticultural Information

Intro: Prostrate-trailing, tap-rooted annual of disturbed areas. Native of South America.

Stems: Stems prostrate, branching, usually rooting at nodes and short-hairy, at least toward stem ends.

Leaves: Leaves opposite, petiolate, oval to diamond-shaped, coarsely toothed, fleshy, gland-dotted.

Inforescence:

Flowers: Composite flowers (heads) solitary at ends of branches, about 1/4-in. wide, consisting of about 5 white ray florets in a ring around a few 5-lobed, tubular disk florets, all surrounded by a series of tiny bracts.

Fruits: Fruit a vaguely star-shaped (5-sided) nutlet covered with hooked prickles.

Comments:

Height: 1-5 ft. (long)

plant sale text:

bloom table text:

description: Prostrate-trailing, tap-rooted annual of disturbed areas. Native of South America.

stems: Stems prostrate, branching, usually rooting at nodes and short-hairy, at least toward stem ends.

leaves: Leaves opposite, petiolate, oval to diamond-shaped, coarsely toothed, fleshy, gland-dotted.

inflorescence:

flowers: Composite flowers (heads) solitary at ends of branches, about 1/4-in. wide, consisting of about 5 white ray florets in a ring around a few 5-lobed, tubular disk florets, all surrounded by a series of tiny bracts.

fruits: Fruit a vaguely star-shaped (5-sided) nutlet covered with hooked prickles.

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Horticultural Information