| 개요 | 사막갓은 기부에 강모가 밀생하고, 줄기가 기부와 말단에서 분지하며, 열매는 성숙시 일부분만 열개되고, 종자는 수분이 있을 때 점성이 띠는 특징으로 배추속의 갓, 유채와 쉽게 구분된다.Herbs annual, erect, .0.1–1 m tall. Stems branched basally and distally, green or purple, hirsute proximally. Basal leaves rosettes, persistent; petiole 1.0–4.0 cm; blades lyrate, deeply pinnatisect, 11.0–20.0 × 4.0–6.0 cm, with lobes 4–8 each side, margin serrate to dentate, hirsute; terminal leaflets 2.0–3.2 × 2.0–2.5 cm; lateral leaflets 2.0–3.0 × 1.0–2.0 cm. Cauline leaves alternate, subsessile or petiolate; petiole less than 2.0 cm; blades oblanceolate, 3.0–5.0 × 2.0–3.0 cm, margins serrate, base tapered, not auriculate or amplexicaul, reduced in size distally and densely hirsute. Inflorescence raceme, elongate rachis with flowering. Flowers bisexual, actinomorphic; pedicel 3.6–4.5 cm long; sepals 4, erect or spread, elliptic, central sepals 3.6–3.8 × 1.4–1.5 mm , lateral sepals 3.1–3.7 × 1.1–1.3 mm, apex obtuse, base saccate, exterior usually purplish, 1–2 bristles on upper; petals 4, oblanceolate or spatulate, 5.5–7.0 × 1.5–2.0 mm wide, apex round or obtuse, light yellow with dark yellow or brown veins on surface; stamens 6, tetradynamous, linear, white; central filaments 2.5–3.3 mm long, lateral filaments 1.0–1.6 mm long; anthers oblong, yellow, ones of central filament 1.4–1.6 × 0.6–0.8 mm, ones of lateral filaments 1.2–1.4 × 0.5–0.7 mm; nectary glands 4, median glands 2, lateral glands 2; pistil 2.9–3.3 × 0.6–0.8 mm, 2-loculed; ovules 5–8 per locule; styles 1.3–1.7 mm long; stigma capitate, 0.5–0.7 mm wide. Fruit capsule, dehiscent, spreading or ascending, torulose, cylindric, 4.5–6.0 cm long, 2.1–2.5 wide; valves 2 with a prominent midvein; terminal segment 1–3-seeded, indehiscent; stalk 7.7–15.8 mm long. Seeds uniseriate, globose, light reddish brown to black, 2.1–2.5 mm diam; seed coat reticulate, mucilaginous when wetted; cotyledons conduplicate. |
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