Accepted Symbol
HENU
Symbol
HENU
Scientific Name
Helianthus Nuttallii
Common Name
Nuttalls Sunflower
Category
Dicot
Genus
Helianthus
Family
Asteraceae
Family Symbol
ASTERA
Family Common Name
Aster Family
Ecology and Taxonomy Data
Orders
Liliales
Subclass
Liliidae
Class
Liliopsida
Division
Magnoliophyta
Superdivision
Spermatophyta
Subkingdom
Tracheobionta
Kingdom
Plantae
Itis Tsn
42750
Duration
Perennial
Growth Habit
Forb/herb
Native Status
L48 (N), AK (N), CAN (N)
Morphology/Physiology
Active Growth Period
Spring, Summer, Fall
After Harvest Regrowth Rate
Slow
Bloat
None
C N Ratio
Medium
Coppice Potential
No
Fall Conspicuous
No
Fire Resistance
No
Flower Color
Yellow
Flower Conspicuous
Yes
Foliage Color
Green
Foliage Porosity Summer
Porous
Foliage Porosity Winter
Porous
Foliage Texture
Coarse
Fruit Color
Brown
Fruit Conspicuous
Yes
Growth Form
Rhizomatous
Growth Rate
Moderate
Maximum Feet
10
Height
No
Mature Feet
No
Known Allelopath
Moderate
Leaf Retention
No
Lifespan
None
Low Growing Grass
No
Nitrogen Fixation
Erect
Growth Data
Adapted To Coarse Textured Soils
No
Adapted To Medium Textured Soils
Yes
Adapted To Fine Textured Soils
Yes
Anaerobic Tolerance
Medium
Caco3 Tolerance
Low
Cold Stratification Required
No
Drought Tolerance
Low
Fertility Requirement
Medium
Fire Tolerance
Medium
Frost Free Days
120
Hedge Tolerance
None
Moisture Use
Medium
Ph Minimum
5.9
Ph Maximum
7.5
Precipitation Minimum
12
Precipitation Maximum
20
Root Depth
14
Minimum Inches
None
Salinity Tolerance
Intolerant
Shade Tolerance
-38
Reproduction Data
Bloom Period
Mid Summer
Commercial Availability
Routinely Available
Fruit Seed Abundance
High
Fruit Seed Period Begin
Summer
Fruit Seed Period End
Fall
Fruit Seed Persistence
Yes
Propogated By Bare Root
No
Propogated By Bulbs
No
Propogated By Container
No
Propogated By Corms
No
Propogated By Cuttings
No
Propogated By Seed
Yes
Propogated By Sod
No
Propogated By Sprigs
No
Propogated By Tubers
No
Seeds Per Pound
125000
Seed Spread Rate
Slow
Seedling Vigor
Medium
Small Grain
No
Vegetative Spread Rate
Slow
Sustainibility Data
Berry Nut Seed Product
No
Christmas Tree Product
No
Fodder Product
No
Lumber Product
No
Naval Store Product
No
Nursery Stock Product
No
Palatable Browse Animal
Medium
Palatable Graze Animal
Low
Palatable Human
No
Post Product
No
Protein Potential
Low
Pulpwood Product
No
Veneer Product
No
