En EspaŅol

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
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
2 ratings

Sunday - March 29, 2009

From: Boston, MA
Region: Northeast
Topic: Wildflowers
Title: Parasitic paintbrush
Answered by: Joe Marcus and Damon Waitt

QUESTION:

Many years ago I tried to grow some paintbrush seedlings with some seeds you sent me and found it difficult. Based on pictures in the literature I noticed that paintbrushes do not seem to affect their hosts as drastically as other parasites. Lupines and paintbrushes look well together. From your experience is this correct?

ANSWER:

Parasitic plants come in several flavors. Among them, there are obligate parasites, which must parasitize a host plant in order to survive and receives all of its nourishment from the host plant. These plants typically lack chlorophyll. There are facultative parasites which will opportunistically parasitize a host plant given a chance, but can survive and complete its life-cycle without a host. These plants are often called hemiparasites or hemiparasitic plants.

Castilleja indivisa (entireleaf Indian paintbrush) is typical of this group of plants. It can and will parasitize neighboring plants via root connections if living in close proximity, but will also grow and reproduce on its own if no host plant is available. The various species of Indian Paintbrush native to Texas often parasitize plants of the grass family (Poaceae), but they really aren't particularly picky about who their hosts are and will attach themselves to and draw nutrients from any number of plant species. Indian Paintbrushes growing with the assistance of a host plant will almost invariably outgrow a sibling without such benefits. Likewise, a host plant parasitized by a Castilleja will normally suffer quite noticably.

... and, yes, lupines and paintbrushes look terrific together.


Castilleja indivisa


Castilleja indivisa
 

More Wildflowers Questions

Landscaping for a wedding in Memphis MO
October 13, 2009 - I am pretty new at this landscaping flower thing, but I love it. We just moved out to the country in NE Missouri from Colorado (Huge difference, but love it). We have decided to have our wedding at o...
view the full question and answer

Wildflower seeds to plant in summer in Austin
July 01, 2010 - Are there any wildflower seeds that can be planted during the summer months in Austin, TX?
view the full question and answer

More on bluebonnets
January 09, 2007 - I have had an area in my yard where I have established bluebonnets. Since we had such a dismal showing in the spring of 2006 I was looking forward to a great show for 2007. Lo and behold I had about...
view the full question and answer

When do bluebonnets bloom in Austin
January 03, 2008 - When do Blue Bonnets bloom in Austin? We have someone who wants to come visit and see the Blue Bonnets and I want to tell them the right time of year.. Thanks!!
view the full question and answer

How will winter weather affect bluebonnets this year?
February 27, 2010 - Just wondering how our winter weather this year will affect the blooming of bluebonnets. When are they expected to be in full bloom and what will be their duration? Thank you.
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center