||This is the first day I have seen Campanula
rapunculoides (creeping bellflower) in flower.
||Silphium laciniatum (compass plant)
has begun to flower in UWGB's planted prairie. It is usually a little
later than this.
||Tilia americana (basswood)
has begun to flower, UWGB.
Lythrum salicaria (purple
loosestrife) has begun to flower, west shore of Green Bay,
Brown and Oconto Counties.
First flower for Ceanothus americanus (New Jersey Tea),
Cercyonis pegala (Common wood nymph) butterflies
have emerged on UWG campus.
Green Bay's high temperature was 92 F again today and it was humid.
Both Asclepias tuberosa (butterfly weed) and Asclepias
incarnata (swamp milkweed), began to flower today, UWGB's
The first open flowers were noted today for Cirsium arvense
(Canada thistle) and Urtica dioica (stinging nettle),
Green Bays weather is hot and humid with a high temperature
of 92 F and high humidity. Yesterdays high was 91.
Echinacea pallida (pale purple coneflower) in flower,
UWGB. I suspect that this species had started to flower earlier
on prairie plantings on sandier soils. Echinacea pallida
does not grow naturally this far north, but it is commonly planted
and appears to thrive in some locations after planting.
A few open flowers of Cichorium intybus (Chickory)
have been noted in City of Green Bay area, as early as June 18 (Kathy
Groves). The earliest to flower are usually along roadsides or sidewalks.
They usually begin to flower conspicuously near the end of June.
||Stachys palustris (hedge-nettle)
in flower, Brown County (but not yet on UWGB).
||Trifolium fragiferum (strawberry
clover) in flower, City of Green Bay. This species is a recent
introduction into our area
||Phleum pratense (timothy)
and Agropyron repens (quack grass) in flower (anthers
dispersin pollen) Brown County, Town of Allouez.
Rhus hirta (staghorn
sumac, previously known as Rhus typhina), Asclepias
syriaca (common milkweed), Apocynum sibiricum
(Indian hemp) and Leonurus cardiaca (motherwort)
in flower on UWGB's Cofrin Arboretum (Kathy Groves).
||Catalpa speciosa (northern catalpa)
and Tilia Cordata (small-leaved linden, horticultural
||Rhus typhina (staghorn sumac)
and Melilotus officinalis (yellow sweet clover) in flower,
||Carduus nutans (nodding thistle)
in flower, City of Green Bay.
New plants in flower, UWGB: Hypericum perforatum (St.
John's-wort), Geum aleppicum (yellow avens), Heliopsis
helianthoides (false sunflower).
Populus deltoides (eastern cottonwood) seed dispersal
is att the highest rate I have seen this year.
Convolvulus arvensis (field bindweed) in flower,
Medicago sativa (alfalfa) in flower, Brown Count,
Allouez and UWGB.
Melilotus officinale (yellow sweet clover), Prunus
vulgaris (heal-all), Campanula rotundifolia (harebell),
Anemone virginiana (tall thimbleweed) in flower, Brown
County, Town of Scott.
||new plants in flower, UWGB: Cornus racemosa
(gray dogwood), Calystegia sepium (hedge bindweed),
Allium canadense (wild garlic).
||Several species began to flower while I
was out of town between 0608 and 0612: Bromus inermis (smooth
brome), Iris virginica (blue flag), Sanicula
gregaria (black snakeroot), Leucanthemum vulgare
(ox-eye daisy), Heracleum lanatum (cow parsnip).
||Hieracium aurantiacum (orange
hawkweed) in flower, UWGB.
||Smilacina racemosa (large false
Solomon's-seal) in flower, UWGB.
Tradescantia ohioensis (spiderwort) and Rosa blanda
(wild rose; pasture rose) in flower, UWGB's Cofrin Arboretum
Phalaris arundinacea (reed
canary grass) in flower (dispersing pollen), UWGB. This
is a serious invasive plant in Wisconsin and it totally dominates
many wetlands, thereby excluding all native species that might otherwise
||I saw my first firely or lightning bug
(Lampyridae)of the year tonight.
Town of Cooperstown, Manitowoc County (Joel Trick).
First "lightning bug" or "firefly" reports
of the the year, Town of Ledgeview (Kathy Groves).
Cornus alternifolia (alternate-leaved dogwood) in
First day of flower for Rubus occidentalis (black raspberry),
Anemone canadensis (Canada anemone) and the weedy
invasives Vicia cracca (cow vetch) and Sinapis
arvensis (charlock; yellow mustard)), UWGB.
Every year it is obvious that some species are doing particularly
well and others more poorly than usual. So far this spring it
appears that Impatiens biflora (jewelweed) is having
a banner year in moist to wet forests on UWGB and in the "sand
prairie" the same is true for Amorpha canescens (leadplant).
Earlier, it was a particularly poor showing for our two Erythronium
species (trout lilies). The weather turned cold and cloudy
just as they began to flower and it was the most meager showing
of flowers for these plants on UWGB that I have seen in over 25
years. Every year is different and the averages of events don't
do justice to the diversity that is experienced on a day to day
basis. [Late note: James Seiler of Reedsville reports that the flowers
of Erythronium that did occur seemed to stay in bloom longer
If you are having cold like symptoms, perhaps repeatedly "clearing
your throat", coughing or sneezing, you might consider the
huge volume of pollen that has been released into the air
over the last 3 or 4 days by Poa pratensis (Kentucky bluegrass).
I think for a lot of people it is more an irritant rather than an
allergic reaction, although it is clear that some people do suffer
from allergies caused by this pollen. Usually it is a brief period,
but there are other common grasses waiting in the wings--Bromus
inermis (smooth brome) for example, and Dactylis glomerata
(orchard grass) which has become much more abundant in the
Green bay area in recent years. Both will begin to flower in the
next few days.
Spittlebugs first noted
on plants, UWGB. The nymphs hatch about this time of year and soon
produce a mass of bubbles on a host plant, presumably to protect
them from predators. They are sucking insects, but their effect
on plants in our area appears to be minor. I'll try to remember
to get a photo of the actual insect inside the bubbles. The average
date of first appearance on UWGB is May 24 and one of the most popular
hosts is the alien plant species Galium mollugo, a garden
escape that spreads aggressively through roadsides and inactive
Several plant species on UWGB's Cofrin Arboretum have begun to
flower in response to a shift to warmer and sunnier days: Hesperus
matronalis (dame's-rocket), Zizia aurea (golden
Alexanders), Smilacina racemosa (spikenard, plants
in full sun), Vitis riparia (river grape). Also in
the lawns Trifolium repens (white clover) and Trifolium
hybridum (alsike clover) are in flower.
Pinus resinosa (red pine; Norway pine) has
begun dispersing pollen on the UW-Green Bay campus.
Acer saccharinum (silver maple) trees are beginning
to disperse mature fruit, City of Green Bay. This is a difficult
event to note precisely, because they often abort some fruits and
drop them before they are mature.
Androsace occidentalis (rock-jasmine) is mature and
has mostly turned brown. This is a true spring ephemeral, but not
of the type that is usually cited. It began to flower April 12 and
was completely done by June 1. It grows on severely dry sites where
there is little competition, but it must complete its growth with
the spring moisture, before the warmer and drier weather begins.
We usually use the term spring ephemeral to refer to forest plants
that must complete most of their resource capture before the tree
canopy leafs out. The big issue in that case is availability of
light, rather than availability of water as in the case of Androsace.
Today is the first day I noticed June Beetles (Scarabaeidae,
Phyllophaga spp.). I rescued one that blundered into UWGB's MAC
Hall, and one was attracted to my porch light that night (Mike Draney).