Justicia longii
| Justicia longii | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Lamiales |
| Family: | Acanthaceae |
| Genus: | Justicia |
| Species: | J. longii |
| Binomial name | |
| Justicia longi Hilsenb. | |
Justicia longii (longflower tubetongue) is an herbaceous perennial subshrub in the acanthus family (Acanthaceae) found in the Arizona Upland of the Sonoran Desert.[1]:34 Each of its white flowers blooms in the evening and lasts only a single night.[1]:34 The next morning the corollas fall, littering the ground with a white carpet.[1]:34 It has a long bloom season from April to October.[1]:34