Plant Index


 
 
 
 

Hypericum frondosum

Hypericum frondosum Michx.

cedar-glade st. john's-wort

Synonym(s): Hypericum aureum, Hypericum splendens
Hypericum frondosum (Cedar-glade St. John's-wort)
Image ID: 94483
Image by: Fleming, Gary P.
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: HYFR
SCIENTIFIC NAME: Hypericum frondosum
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2019-01-29

GENUS INDEX

GENUS CODE: HYPER
GENUS SCIENTIFIC: Hypericum
GENUS AUTHORITY: L.
GENUS COMMON: St. Johnswort
GENUS SUMMARY: A genus of 370-420 species, trees, shrubs, and herbs, primarily temperate. Hypericum in our area is a large, complex, and interesting genus, with a number of unresolved questions remaining. Following Nürk et al. (2013), it seems best to circumscribe Hypericum to include Triadenum (in Key A) and Thornea (the latter not relevant to our area), but not Vismia and Harungana. The species treated in Key C have often been treated in the segregate genus Ascyrum; evidence from a variety of disciplines now suggests that they should be included in Hypericum (Adams & Robson 1961; Calie, Schilling, & Webb 1983; Robson 1996; Nürk et al. 2013). Triadenum, while almost basal in Hypericum, should also be included (Nürk et al. 2013).
GENUS IDENTIFICATION: Identification notes: “Longest leaves” should be sought at branch nodes.
GENUS REFERENCES: Sorrie (2012)=U; Adams (1973)=Z; Godfrey (1988)=Y; Robson (1977, 1981, 1990, 1996, 2001, 2002, 2006)=X; Adams (1962)=V; Allison (2011)=Q; Adams (1957); Webb (1980); Robson & Adams (1968); Adams & Robson (1961); Calie, Schilling, & Webb (1983); Culwell (1970); Nürk et al. (2013); Cooperrider (1989); Stevens in Kubitzki, Bayer, & Stevens (2007). Key based in part on Adams (1973), Godfrey (1988), C, and GW. {add for FL: Hypericum cumulicola, Hypericum edisonianum, and also add ‘not yet keyed’ Hypericum dolabriforme and Hypericum erythreae}

FAMILY INDEX

FAMILY CODE: HYPERIC
FAMILY SCIENTIFIC: Hypericaceae
FAMILY AUTHORITY: A.L. de Jussieu 1789
FAMILY COMMON: St. John's-wort Family
FAMILY SUMMARY: A family of 7-9 genera and 480-560 species, herbs, shrubs, and trees, nearly cosmopolitan. It appears from molecular analysis that recognition of the Hypericaceae is (after all) warranted. Hypericum is in a clade with Podostemum and Bonnetia, sister to a clade including Clusiaceae s.s. (Savolainen et al. 2000), and unless the morphologically very different Podostemaceae is to be included in a broad Clusiaceae, Hypericaceae and Podostemaceae must be recognized.
FAMILY REFERENCE: Adams (1973)=Z; Godfrey (1988)=Y; Wood & Adams (1976); Stevens in Kubitzki, Bayer, & Stevens (2007).

NCBG DESCRIPTIVES

INTRO:
STEMS:
LEAVES:
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT: 4 ft.

DURATION: Perennial
HABIT: Subshrub, Shrub

LEAF ARRANGEMENT:
LEAF COMPLEXITY:
LEAF RETENTION: Deciduous

FLORAL CHARACTERISTICS
SYMMETRY:
BLOOM TIME: May-Aug
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
x x x x x

BLOOM COLOR: Yellow flowers
White Red Pink Orange Yellow Green Blue Lavender Purple Violet Brown Not Applicable
x

FRUITING PERIOD:

DISTRIBUTION
HABITAT TYPE: Outcrops and glades
NATIVE RANGE: southeastern United States

HORTICULTURAL
Plant Sale Text: This is a Southeastern native shrub that adds lively color to the summer garden. Blooming for many weeks in midsummer, its profuse small yellow flowers contrast beautifully with the glossy, blue-green foliage. This adaptable native shrub may be seen growing on bluffs and rocky banks. This is a good plant for pollinators during the summer. Although it is easily grown, cedar glade St. John’s-wort is relatively uncommon. The Hypericum genus supports up to 20 species of lepidoptera.

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Dry, Average
LIGHT EXPOSURE: Sun, Part Shade, Shade
MINIMUM HARDINESS ZONE: 5
MAXIMUM HARDINESS ZONE: 8
GERMINATION CODE:
WILDLIFE VALUE: Bee Friendly, Butterfly Friendly
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
4758 1993-0036 View
6675 1996-0326 View
8190 2004-0206 2006-05-19 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
1311 HORT 2006-11-06 Bryan View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
7104 4758 79 NCBG staff 1993-10-01 View
9435 6675 140 NCBG staff 2004-01-01 View
9436 6675 118 NCBG staff 1967-12-31 View
11453 8190 83 NCBG staff 2004-01-01 View

USDA PLANTS DATABASE

USDA Symbol: HYFR
USDA Common Name: Cedarglade St. Johnswort
Native Status: L48 (N)
Distribution: USA (AL, CT, FL, GA, IN, KY, LA, MA, MS, NC, NY, SC, TN, TX, VA)
Duration: Perennial
Growth Habit: Subshrub, Shrub

WEAKLEY FLORA

SCIENTIFIC NAME: Hypericum frondosum
COMMON NAME:
SYNONYMY: [= C, F, G, K, V, Va, W, WH3, Y, Z; > H. aureum Bartram - S; > H. splendens Small - S]
PHENOLOGY: Late May-Aug.
HABITAT: Rock outcrops and rocky woodlands; also in dry disturbed areas.
COMMENTS: This species is native and widespread as far east as e. TN (Chester, Wofford, & Kral 1997), GA, and FL.
RANGE MAP: Hypericum frondosum.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Hypericaceae A.L. de Jussieu 1789 (St. John's-wort Family)
SUMMARY: A family of 7-9 genera and 480-560 species, herbs, shrubs, and trees, nearly cosmopolitan. It appears from molecular analysis that recognition of the Hypericaceae is (after all) warranted. Hypericum is in a clade with Podostemum and Bonnetia, sister to a clade including Clusiaceae s.s. (Savolainen et al. 2000), and unless the morphologically very different Podostemaceae is to be included in a broad Clusiaceae, Hypericaceae and Podostemaceae must be recognized.
REFERENCE: Adams (1973)=Z; Godfrey (1988)=Y; Wood & Adams (1976); Stevens in Kubitzki, Bayer, & Stevens (2007).
ABOUT GENUS (Weakley Flora)
Hypericum L. (St. Johnswort)
SUMMARY: A genus of 370-420 species, trees, shrubs, and herbs, primarily temperate. Hypericum in our area is a large, complex, and interesting genus, with a number of unresolved questions remaining. Following Nürk et al. (2013), it seems best to circumscribe Hypericum to include Triadenum (in Key A) and Thornea (the latter not relevant to our area), but not Vismia and Harungana. The species treated in Key C have often been treated in the segregate genus Ascyrum; evidence from a variety of disciplines now suggests that they should be included in Hypericum (Adams & Robson 1961; Calie, Schilling, & Webb 1983; Robson 1996; Nürk et al. 2013). Triadenum, while almost basal in Hypericum, should also be included (Nürk et al. 2013).
REFERENCE: Sorrie (2012)=U; Adams (1973)=Z; Godfrey (1988)=Y; Robson (1977, 1981, 1990, 1996, 2001, 2002, 2006)=X; Adams (1962)=V; Allison (2011)=Q; Adams (1957); Webb (1980); Robson & Adams (1968); Adams & Robson (1961); Calie, Schilling, & Webb (1983); Culwell (1970); Nürk et al. (2013); Cooperrider (1989); Stevens in Kubitzki, Bayer, & Stevens (2007). Key based in part on Adams (1973), Godfrey (1988), C, and GW. {add for FL: Hypericum cumulicola, Hypericum edisonianum, and also add ‘not yet keyed’ Hypericum dolabriforme and Hypericum erythreae}

HERBARIUM RESOURCES

SERNEC: Find Hypericum frondosum in Southeast Regional Network of Experts and Collections (if available)
UNC SERNEC: Find Hypericum frondosum in University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)

WEB RESOURCES

USDA: Find Hypericum frondosum in USDA Plants
NPIN: Find Hypericum frondosum in NPIN Database
FNA: Find Hypericum frondosum in the Flora of North America (if available)
Google: Search Google for Hypericum frondosum

IMAGE USE RECORDS

ID IMAGE: 94483 - Primary Image FloraQuest Plant Detail Page (Landscape Preferred)
ID IMAGE1: 0 - Primary Image WOTAS
ID IMAGE2: 0 - Secondary Image WOTAS
ID IMAGE3: 53312 - Primary Image Plant Sale Sign (Landscape Only)
ID IMAGE4: 0 - Primary Image New Plant Sale Label (Portrait Only)

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32 photo(s) available in the Image Gallery

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