Search / Plant Profile / Conradina grandiflora

Plant Profile

Large-flower False Rosemary (Conradina grandiflora)

Close-up of lavendar flowers. C. grandiflora has the largest flowers of all the members of the Conradina genus. Photo Credit: Jon Shaw

Global Rank: G3 - Vulnerable
Legal Status: N/A
Family: Lamiaceae
State: FL
Nature Serve ID: 160851
Lifeform: Shrub
Date Inducted in National Collection: 08/12/1987

Description:

This pungently, essentially evergreen, aromatic shrub is in the mint family. There are 5 species in this genus that are found in the southeastern United States, and all but 1 are considered rare or endemic. This particular species, Conradina grandiflora, is particularly memorable because, as its name indicates, C. grandiflora has the largest flowers in its genus. These flowers appear year-round, and are a vibrant blue with blue spots, and two-lipped. Its leaves are needle-like, opposite, dark-green with small black dots, and white underneath because of a dense covering of fine hair. Fruit are rounded, smooth, blackish nutlets.

Where is Large-flower False Rosemary (Conradina grandiflora) located in the wild?

Habitat:

This species is always found on deep, fine sandy soils, often on or in the vicinity of ancient dunes of shores. (Kral 1983b)Associates are typically Pinus clausa, Lyonia, Ilex, various evergreen scrub oaks, Ceratiola, Polygonella and Opuntia. (Kral 1983b)

Distribution:

C. grandiflora occurs in eastern peninsular Florida, in Brevard, Broward, Dade (possibly extirpated), Highlands, Indian River, martin, Osceola, Palm Beach, St. Lucie, and Volucia Counties. (Kral 1983b

States & Provinces:

Large-flower False Rosemary can be found in Florida

Which CPC Partners conserve Large-flower False Rosemary (Conradina grandiflora)?

Fairchild Tropical Botanic Garden

Not Sponsored

Conservation Actions

Assigned 03/02/23

Bok Tower Gardens

Not Sponsored

Silver Sponsor

National Fish and Wildlife Foundation

Andrew W. Mellon Foundation

Bok Tower Gardens

Conservation Actions

Assigned 03/02/23

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

Tina Stanley

05/11/2023

According to a March 2023 extract of the Florida Plant Rescue Database, Fairchild Tropical Botanic Garden holds 1 accessions of Conradina grandiflora totalling approximately 25 seeds representing 5 maternal lines.

09/04/2020

Continue to maintain conservation collections.

09/04/2020

Continue to maintain conservation collections.

Nature Serve Biotics

05/02/2017

Dramatic decline in scrub habitat on Atlantic Coastal Ridge. 64 element occurrences with 14 found within managed areas; not uncommon where scrub persists. Threatened by habitat conversion to housing, commercial development or citriculture.

Dorothy M. Brazis

01/01/2010

The main threat to this species is the dramatic decline in scrub habitat on Atlantic Coastal Ridge, as the species is not uncommon where scrub persists. This habitat is threatened by habitat conversion to housing, commercial development or citriculture.

Dorothy M. Brazis

01/01/2010

There are 64 element occurrences with 14 found within managed areas (NatureServe 2000). C. grandiflora is not uncommon where scrub persists (NatureServe 2000).

Dorothy M. Brazis

01/01/2010

No known research is being conducted on this species.

Dorothy M. Brazis

01/01/2010

No active management is known to be in progress

Dorothy M. Brazis

01/01/2010

Conduct research to determine life history, ecology, and basic biology.

Dorothy M. Brazis

01/01/2010

Continue to maintain conservation collections.