Hyptis brevipes

Common Name: lesser roundweed

Family: Lamiaceae

Common Synonyms: Hyptis acuta

USDA Hardiness Zone: NA

Growth Habit: Herb

Origin: Tropical America

FISC Category: -

FDACS Listed Noxious Weed: No

Introduction Date: Florida herbarium specimen from 2015

IFAS Assessment:

• North: Assessment in progress
• Central: Assessment in progress
• South: Assessment in progress

Description

Tall, erect herb with square stems. Leaves are opposite and coarsely hairy with very short petioles, decurrent leaf bases, and irregularly toothed margins. Flowers are formed in tight, round clusters held on short stalks in the leaf axils. Each cluster of flowers is about 1 cm in diameter. Individual flowers are white and very small (<0.5 cm).

Habitat

Agricultural and waste areas

Comments

Common exotic weed in southeast Asia. Similar to the native H. alata which has longer flower stalks

Control Methods

• Manual: NA
• Chemical: No specific recommendations. The congener Hyptis suaveolens, a weed of Australia, has been controlled with a 1.5% glyphosate foliar application. [https://nt.gov.au/environment/weeds/weeds-in-the-nt/A-Z-list-of-weeds-in-the-NT/hyptis]
• Biological: NA

Control Notes

No specific recommendations available

References

eFloras (2008). Published on the Internet http://www.efloras.org [accessed 2 August 2017] Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Parker, C., Barney P. Caton, & Larry Fowler. (2007). Ranking Nonindigenous Weed Species by Their Potential to Invade the United States. Weed Science, 55(4), 386-397. Retrieved from http://www.jstor.org/stable/4539588. Fact sheet for Hyptis brevipes available from http://wssa.net/wp-content/uploads/Hyptis-brevipes.pdf