TABLE 1 in Astragalus helanshanensis, a new plant species from the arid region of the Helan Mountains in northwestern China

TABLE 1. Detailed comparison of Astragalus helanshanensis and A. borodinii. Morphological charactersA. helanshanensisA. borodiniiStem height (cm)3–53–7Plant indumentumDensely covered with appressed hairsDensely covered with hairsStipulesCovered with short, soft hairsCovered with long, soft hairs, subapressed subbasifixed to basifixed hairs and at the margins with spreading, basifixed hairyLeaf length (cm)2–42–5Number of leaflets2 pairs(1–) 2 pairsleaflet orientationOppositeAlternateLeaflet shapeAcuteObtuse to subacuteLeaflet size (mm)8–15 × 4–58–20 x 3–8Raceme (number of flowers)1–32–3Corolla colorWhitePinkCalyxCalyx is tubular, 13–16 mm long, densely covered with white or black hairsCalyx 11–13 mm, densely villous,Standard18–26 mm long27–30 mm longWingsAbout 15–20 mm long, with a rounded tip and notched15–20 mm long, no rounded tip and notchedKeelKeel petals are slightly shorter than the wings, with the petal length about half the petiole lengthShorter than wing petals, with the petal shorter than the petioleLegume podOvate-elongate, 10–12 mm long, 2–3 mm thick, bilocularEllipsoid-globose, 4–5 mm long, 3–4.5 mm thick, incompletely 2-locular to 1-locular