Convolvulus arvensis L. is a perennial herbaceous plant of the genus Convolvulaceae. The plant can reach 1 meter in length it has woody rhizomes, the stems are lying or winding, hairless or sparsely pubescent the leaves are ovate, ovate-oblong or lanceolate, with blunt apex and halberd-shaped or arrow-shaped base. Or heart-shaped, both sides hairy or hairless cymes axillary, bracts linear, sepals oblong-oval, inner sepals nearly round, corolla white or light red, wide funnel-shaped, stamens slightly unequal, about Half of the corolla, the filaments are covered with small scales, and the stigma is linear the capsule is hairless the flowering period is from June to August, and the fruiting period is from June to September.
圖片編號:
320814367
拍攝者:
Hbcs0084
點數下載
授權類型 | 尺寸 | 像素 | 格式 | 點數 | |
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標準授權 | XS | 480 x 360 | JPG | 13 | |
標準授權 | S | 800 x 600 | JPG | 15 | |
標準授權 | M | 2000 x 1500 | JPG | 18 | |
標準授權 | L | 2581 x 1936 | JPG | 20 | |
標準授權 | XL | 3265 x 2449 | JPG | 22 | |
標準授權 | MAX | 4608 x 3456 | JPG | 23 | |
標準授權 | TIFF | 6517 x 4888 | TIF | 39 | |
進階授權 | WEL | 4608 x 3456 | JPG | 88 | |
進階授權 | PEL | 4608 x 3456 | JPG | 88 | |
進階授權 | UEL | 4608 x 3456 | JPG | 88 |
XS
S
M
L
XL
MAX
TIFF
WEL
PEL
UEL
標準授權 | 480 x 360 px | JPG | 13 點 |
標準授權 | 800 x 600 px | JPG | 15 點 |
標準授權 | 2000 x 1500 px | JPG | 18 點 |
標準授權 | 2581 x 1936 px | JPG | 20 點 |
標準授權 | 3265 x 2449 px | JPG | 22 點 |
標準授權 | 4608 x 3456 px | JPG | 23 點 |
標準授權 | 6517 x 4888 px | TIF | 39 點 |
進階授權 | 4608 x 3456 px | JPG | 88 點 |
進階授權 | 4608 x 3456 px | JPG | 88 點 |
進階授權 | 4608 x 3456 px | JPG | 88 點 |