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sweet alison, sweet-alyssum

Habit Plants suffruticose (when subshrubs).

0.5–2.5(–4) dm.


blade linear or lanceolate-oblanceolate, (1–)1.6–2.5(–4.2) cm × (1–)2–3(–7) mm, base attenuate, apex acute.


elongated in fruit, (1–)4–8(–16) cm, (dense).


sepals often tinged purplish, (1.4–)1.5–1.7(–2.4) mm;

petals broadly obovate, (1.9–)2.3–2.8(–3.1) × (1.2–)1.6–2(–2.6) mm, abruptly contracted into claw;

filaments 1.2–2 mm;

anthers 0.3–0.5 mm.

Fruiting pedicels

(3–)4.5–6(–9.5) mm.


(1.9–)2.3–2.7(–4.2) × (1.2–)1.6–2(–2.9) mm;

valve margins thin, sparsely pubescent;

style 0.4–0.6 mm.


light to reddish brown, not winged, (1–)1.2–1.4(–2) × (0.7–)1–1.1(–1.6) mm.


= 24.

Lobularia maritima

Phenology Flowering year-round (peak spring–summer).
Habitat Roadsides, waste places, vacant lots, cultivated fields, walls, coastal fir zone, mainly along Atlantic, Gulf, and Pacific coasts, also ephemeral inland
Elevation 0-800 m (0-2600 ft)
from FNA
AZ; CA; CT; DE; FL; GA; IA; IL; IN; LA; MA; MD; ME; MI; MS; NC; NH; NJ; NY; OH; OR; PA; RI; SC; TX; UT; VT; WA; BC; NS; ON; QC; Europe; Asia; Africa [Introduced in North America; introduced also in Mexico, West Indies, Central America, South America, Pacific Islands, Australia]
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[BONAP county map]

Lobularia maritima is widely cultivated as an ornamental; many cultivars are on the market. It was introduced to North America because of its drought tolerance and attractive, scented white flowers (R. Ornduff 1974). It has been reported as cultivated in the northern United States back to 1856 (A. Gray 1856). The cultivars naturalize very easily and have been known as locally established garden escapes in North America back to the end of the nineteenth century (N. L. Britton and A. Brown 1896–1898, vol. 2).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 7, p. 598.
Parent taxa Brassicaceae > tribe Malcolmieae > Lobularia
Synonyms Clypeola maritima, Alyssum maritimum, Koniga maritima
Name authority (Linnaeus) Desvaux: J. Bot. Agric. 3: 162. (1815)
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