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Cytisus scoparius

(L.) Link (1822)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Rosids Order: Fabales Family: Fabaceae Genus: Cytisus

scotch broom

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Description

Key Characters:

Growth Form: Many-branched shrubs up to 2(–2.5) m tall.

Stems: Branches green, erect, ascending, or procumbent, 5–angled, sericeous when young, becoming glabrate.

Roots:

Leaves: Leaves compound. Alternate, deciduous. Leaflets narrowly elliptic, 4–6(–10) mm long, 1–2 mm wide. Surfaces glabrous or with appressed hairs. Leaflet margins entire. Petiolate to subsessile. Stipules inconspicuous.

Flowers: Flowers in clusters, in terminal pseudoracemes, apex vegetatively continuing. Flowers papilionaceous; bracteoles present. Calyx ca. 7 mm long, glabrous externally, Calyx bilabiate, 5-lobed, the upper lip 2-toothed, the lower one 3-toothed. Corolla golden yellow, standard 15–25 mm long. Stamens 10, connate; anthers alternately longer (basifixed) and shorter (versatile). Ovary superior; ovules numerous.

Fruit: Pods brownish black; linear; 2.5–5(–7) cm long; 0.8–1(–1.3) cm wide; glabrous or ciliate along sutures. Seeds 4–7; reniform; slightly laterally flattened; 4–7 mm long; 2–4 mm wide.

Ploidy: 2n = 24; 46; 48

Habitat: Pastures.

Elevation Range: ca. 610 m.

Historical Distribution

Images

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Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Hawai'i Naturalized

Dispersal Agents

Water/Ocean
Other Animals

Pollinators

Specimens

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Notes

  • Description digitized by Dylan Charter
  • Description digitized from the Manual of the Flowering Plants of Hawaii
  • First collected in l909 (Rock 3986 BISH).

Bibliography

Name Published In: Enum. Hort. Berol. Alt. 2: 241 (1822)

Other References

Wagner et al. 1990:664 (H)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Cytisus scoparius (L.) Link between honokaa and parker ranch From the fresh water stream mouth. -- Sheet also contains specimens of Hypnea cervicornis & Laurencia attached to the Acanthophora. PRESERVED_SPECIMEN rock, j.f.c. Oahu BISH 7/22/1909
2 Cytisus scoparius (L.) Link Between Honokaa and Parker Ranch PRESERVED_SPECIMEN Rock, J.F.C. 3987 Hawaii BISH 7/22/1909
3 Cytisus scoparius (L.) Link between honokaa and parker ranch PRESERVED_SPECIMEN rock, j.f.c. Hawaii BISH 7/22/1909
4 Cytisus scoparius (L.) Link Between Honokaa and Parker Ranch PRESERVED_SPECIMEN Rock, J.F.C. s.n. Hawaii BISH 7/22/1909
5 Cytisus scoparius (L.) Link mt. hualalai, near "trees & shrubs" exclosure PRESERVED_SPECIMEN markin, g. collector number: s.n. Hawaii BISH 2/1/1997
6 Cytisus scoparius (L.) Link Mt. Hualalai, near "trees & shrubs" exclosure PRESERVED_SPECIMEN Markin, G. s.n. Hawaii BISH 2/1/1997
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