The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

African mustard, Asian mustard, mustard, sahara mustard

Habit Annuals; densely hirsute proximally, glabrescent distally. Annuals, biennials, or perennials [shrubs]; eglandular.
Stems

usually branched basally, (widely) branched distally, (1–)3–7(–10) dm.

Basal leaves

(rosettes persistent);

petiole (broad) 2–10 cm;

blade lyrate to pinnatisect, 2–30 cm × 10–50(–100) mm, (margins serrate-dentate), 4–10 lobes each side.

Cauline leaves

sessile;

blade (reduced in size distally, distalmost bractlike), base tapered, not auriculate or amplexicaul.

petiolate or sessile;

blade base auriculate or not, margins entire, dentate, serrate, or pinnately lobed.

Trichomes

absent or simple.

Racemes

not paniculately branched.

usually ebracteate, often elongated in fruit.

Flowers

sepals 5–4.5 × 1–1.5 mm;

petals pale yellow, fading or, sometimes, white, oblanceolate, 4–7 × 1.5–2(–2.5) mm, claw 1–3 mm, apex rounded;

filaments 2.5–4 mm;

anthers 1–1.3 mm;

gynophore to 1 mm.

actinomorphic;

sepals erect, ascending, or spreading, lateral pair saccate or not basally;

petals white, cream, yellow, pink, lilac, lavender, or purple, claw present, often distinct;

filaments unappendaged, not winged;

pollen 3-colpate.

Fruiting pedicels

widely spreading, 8–15 mm.

Fruits

(shortly stipitate); widely spreading to ascending (not appressed to rachis), torulose, cylindric, 3–7 cm × 2–4(–5) mm;

valvular segment with 6–12(–15) seeds per locule, 2.2–5 cm, terminal segment 1(–3)-seeded, (cylindric, stout), 10–20 mm.

silicles or siliques, dehiscent or indehiscent, usually segmented, usually latiseptate or terete (subterete or 4-angled in Erucastrum) [angustiseptate];

ovules (1–)2–276[–numerous] per ovary;

style usually distinct (absent in Cakile, obscure in Carrichtera, obsolete in Eruca);

stigma entire or strongly 2-lobed (sometimes slightly 2-lobed in Cakile).

Seeds

light reddish brown or black, 1–1.2 mm diam.;

seed coat prominently reticulate, mucilaginous when wetted.

biseriate, uniseriate, or aseriate;

cotyledons usually conduplicate, rarely accumbent or incumbent (in Cakile).

2n

= 20.

Brassica tournefortii

Brassicaceae tribe Brassiceae

Phenology Flowering Feb–Apr.
Habitat Roadsides, waste places, old fields, washes, open desert areas intermixed with desert shrubs
Elevation 0-800 m (0-2600 ft)
Distribution
from FNA
AZ; CA; NV; TX; UT; Europe; Asia; Africa [Introduced in North America; introduced also in nw Mexico, Australia]
[WildflowerSearch map]
[BONAP county map]
North America; Eurasia; n Africa [Introduced widely]
Discussion

Brassica tournefortii was first reported from California (Imperial, Riverside, and western San Bernardino counties) by W. L. Jepson ([1923–1925]), with the first collections appearing from southern California in 1941 (R. C. Rollins and I. A. Al-Shehbaz 1986), Arizona in 1959 (T. H. Kearney and R. H. Peebles 1960), Nevada in 1977, and Texas in 1978 (D. E. Lemke and R. D. Worthington 1991).

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

Genera 46, species ca. 245 (13 genera, 28 species in the flora).

The generic boundaries in Brassiceae are largely artificial, and the number of genera may be substantially reduced.

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

Source FNA vol. 7, p. 424. FNA vol. 7, p. 419.
Parent taxa Brassicaceae > tribe Brassiceae > Brassica Brassicaceae
Sibling taxa
B. elongata, B. fruticulosa, B. juncea, B. napus, B. nigra, B. oleracea, B. rapa
Subordinate taxa
Name authority Gouan: Ill. Observ. Bot., 44, plate 20A. (1773) de Candolle: Mém. Mus. Hist. Nat. 7: 242. (1821)
Web links