Galeopsis ladanum
Edit Page
Report
Scan day: 05 March 2014 UTC
59
Virus safety - good
Description: Photograph and information on red hemp nettle, its morphology, biology, distribution, ecology and economic significance as a weed species.
AgroAtlas - Weeds - Galeopsis ladanum L. - Red Hemp Nettle. Family Lamiaceae, genus Galeopsis L. Dalanum ladanum (L.) Dostal, Ladanum intermedium (Vill.) Slavikova. Stem is erect or ascending, angular, branched, with soft, downwardly adjacent hairs that do not thicken under nodes; up to 40 cm tall. Cotyledons are oval, full, with rounded tip and two distinct teeth at base. Leaves are short-petiolate, broad, ovate-lanceolate, crenulate, slightly pubescent or nearly hairless. Inflorescence is sparse, false whorl. Flowers are sessile, up to 6-10 per whorl. Calyx is 8-10 mm, slightly pubescent, with indistinct veins and pubescent teeth that are unequal in length. Corolla is 2 cm long; its tube is much longer than calyx, whitish; lower labia is lilac-purple with yellow spot and dark purple reticulation at fauces; its middle lobe is broadly obovate, 1.5-2 times broader than lateral lobes. Nutlets are obovate, with rounded tip, tapered toward base, smooth, dull. Color of nutlets is variegated, dark brown or brown-reddish, with light gray, dot-like spots. The weight of 1000 nutlets is 1.8-2g. The maximum fecundity of one plant is 7200 nutlets. Flowering period is June-September.
Size: 1189 chars
Contact Information
Email: —
Phone&Fax: —
Address: —
Extended: —
WEBSITE Info
| Page title: | AgroAtlas - Weeds - Galeopsis ladanum L. - Red Hemp Nettle. |
| Keywords: | interactive atlas map economic plant distribution area vegetation diseases pest weed USSR agriculture Russia geography GIS NIS biology photo nature geographic information system handbook ecological maps research investigation pictures download description |
| Description: | description |
| IP-address: | 195.70.197.2 |
WHOIS Info
| NS | |
| WHOIS | |
| Date | created: 2005.05.04 Last updated on 2014.03.05 07:21:32 MSK |