Rent Shop Volunteer Join

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
See a list of all Smarty Plants questions

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
1 rating

Thursday - April 12, 2012

From: Kerrville, TX
Region: Southwest
Topic: General Botany, Plant Identification
Title: Seeds of Castilleja purpurea
Answered by: Nan Hampton

QUESTION:

The seed photo for Castilleja purpurea is incorrect; seeds are black and poppyseed size.

ANSWER:

Minnette Marr with the Wildflower Center Seed Bank has assured me that the photo correctly shows the seeds of Castilleja purpurea (Prairie paintbrush).  The photo shows them with a netlike covering that is described by Correll and Johnson in Manual of the Vascular Plants of Texas, p. 1439.  The description reads:

"...seeds numerous, the testa loose and alveaolately reticulate."

The testa is the seed coat and, being loosely attached, easily comes off the seed.   You will note the scale bar with the photo that is 10 millimeters (mm) long—about the width of a dime.  The seeds with the testa measure about 2 mm; and, you can see that with the testa missing they would be about 1.5 mm and they appear dark, if not black.  That is not too different in size and color from that of a sesame seed.

 

From the Image Gallery


Prairie paintbrush
Castilleja purpurea

Prairie paintbrush
Castilleja purpurea

More General Botany Questions

Pure white primroses (Oenothera speciosa)
May 13, 2008 - Hello MS. Smarty Plants! I have wildflowers instead of grass in my backyard (mow once a year and it's spectacularly beautiful) and I noticed some pure white primroses (the rest are all pink or wi...
view the full question and answer

Experiment to detect presence of sugar in cellulose from Routt CO
January 28, 2013 - My teacher ask me to plan an experiment to detect the presence of sugar in cellulose. I know that cellulose are abundant at the stem, and sugar here is glucose. I wonder how to conduct this experiment...
view the full question and answer

Correct spelling of Passiflora caerulea
August 07, 2007 - What is correct, passiflora coerulea or caerulea ?
view the full question and answer

Smarty Plants on forbs
October 16, 2005 - What kind of plant is a forb? I see the term used frequently in reference to grasses (I think), but I can't figure out exactly what a forb is.
view the full question and answer

Will recent freezes delay wildflowers from Dripping Springs TX
February 15, 2011 - What effect will the recent freezing temperatures have on the Texas Hill Country Wildflowers? Will it delay blooming? Thank you!
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.

Bibliography

Manual of the Vascular Plants of Texas (1979) Correll, D. S. & M. C. Johnston

Search More Titles in Bibliography