Herbs annual or biennial.Root stout, tuberlike, and napiform or fusiform, or branched and not tuberlike.

一年生二年生草本根粗壮，管，和孔纺锤形的，而不管。

Caudex branched, erect, to 2 cm in diam.Caudex leaves scalelike, triangular to subtriangular.

块根，直立，在2厘米直径块根离开鳞片，到近三角形三角形。

Stem conspicuously striate or tetragonous, robust, succulent, simple or branched in upper part.

茎显著的具条纹的4棱，粗壮，肉质的，单一在上半部。

Stem succulent, simple or divaricately branched from middle, lower nodes swollen, naked.

茎肉质的，单中的，下部节膨胀，裸露。

Unlike a leaf, a cladode has buds on its surface.

但节与节明显，节上能，生叶和开花。

Basal leaves decussate; middle stem leaves opposite; distal stem leaves alternate; Inflorescence paniculiform with cymose branches.

基生叶交互对生；中茎生叶对生；上部茎生叶互生；花序圆锥花序的具聚伞的。

The characteristic of hyphae are regular width and septation with typical branching in acute angle (about 45 degrees) in PAS stain.

病理切片经由PAS染色清楚可见麴菌菌丝，其具有隔，且呈锐角，约45度角，为其特徵。

Tendril unbranched or bifurcate. Inflorescence usually a polychasium. Seeds elliptic, obovoid-elliptic, or obtriangular, surface smooth, corrugated, or with strumose protuberance or ribs.

卷须不二叉。通常的花序一多歧聚伞花序。种子椭圆形，倒卵球形椭圆形，倒三角形的，平滑的表面，具皱褶，具瘤的突起肋。

Evolution is regarded as a branching process, whereby populations are altered over time and may speciate into separate branches, hybridize together, or terminate by extinction.

进化被视为一个过程；随着时的推移，种群发生改变，种群也可能进化成为，也可能相互杂交灭绝终止。

A mutant, TS-N-121 was obtained by mutation and plate screening from a parent strain Mycobacterium fortuitum MF2 , which could transform sterol into androstanedione as the main product.

从雄甾二酮的转化产生菌偶发杆菌MF2出发,经紫外诱变结合平板筛选,获得一株主要转化生产睾酮的突变株TS-N-121。

Stems caespitose, simple or many branched, 60-150 cm tall, ca. 1 cm in diam., antrorsely setulose, armed with spreading stinging hairs, dense in lower parts, sparser in upper parts.

丛生的茎，单多，60-150厘米高，直径约1厘米，向上地具小刚毛的，具平展的蛰毛刺，紧密的在下部，稀的在上半部。