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Montana Field Guide

Montana Field Guides

Sweet Alyssum - Lobularia maritima

Non-native Species

Global Rank: GNR
State Rank: SNA
C-value: 1

Agency Status


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General Description
Perennial. Stems decumbent, branched, 10–35 cm. Leaves cauline, linear, 1–6 cm long, entire. Vestiture grayish with appressed, dolabriform hairs. Inflorescence a simple, narrow, many-flowered raceme. Flowers white to pink; sepals 1–2 mm long; petals 2–3 mm long. Fruit elliptic, flattened, 2–4 mm long, sparsely hairy; pedicels 5–11 mm long; style 0.5 mm long; seeds 1 per locule (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Introduced throughout temperate North America (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 8

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Relative Density



(Observations spanning multiple months or years are excluded from time charts)



  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Schwend, Ann C. 1995. Sclerotium spp for biological control of tall larkspur (Delphinium spp). M.Sc. Thesis. Bozeman, MT: Montana State University. 98 p.
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Citation for data on this website:
Sweet Alyssum — Lobularia maritima.  Montana Field Guide.  .  Retrieved on , from